Alexsandr Kallus

Alexsandr Kallus, a human male, was born on Coruscant in the waning years of the Galactic Republic, sometime between 44 BBY and 35 BBY. After Darth Sidious, a Sith Lord publicly known as Supreme Chancellor Palpatine, proclaimed himself Emperor and transformed the Republic into the Galactic Empire, Kallus enrolled in the Royal Imperial Academy on Coruscant, the primary institution for the new regime's military training program. At the Academy, Kallus was a student of Wullf Yularen, who considered him a promising student. He also developed a friendship with Jovan, who became a mentor to the young Coruscanti. Both completed their studies together, with Kallus graduating at the top of his class. Later, Kallus became a member of the Imperial Security Bureau, a clandestine organization dedicated to suppressing rebellious activities throughout the galaxy. Designated ISB-021, Kallus rose to become a high-ranking Agent and captain within the bureau, serving in the Enforcement, Internal Affairs, and Investigations divisions.

Following his graduation, Kallus commanded his own squad of stormtroopers as his first assignment. Around 18 BBY, Kallus and his squad were dispatched by the Empire to restore order on Onderon, a world in chaos after the Clone Wars. During a patrol led by Kallus, a Lasat rebel mercenary working for Saw Gerrera ambushed the squad and incapacitated Kallus. Upon regaining consciousness, Kallus was unable to move and forced to witness the brutal slaughter of his squad by the Lasat mercenary, instilling in him a deep hatred for the Lasat species. However, the Lasat spared Kallus's life, leaving the Imperial bewildered. Kallus later met fellow ISB agent Andressa Divo and discussed the violent nature of Gerrera's campaigns, which disturbed Divo to the point where she hesitated to include specific details in her reports.

Around 10 BBY, Kallus collaborated with IG-88 to track down Captain Han Solo of the Millennium Falcon, a smuggler and former Imperial Army deserter. Kallus used a shuttle to locate Solo during a smuggling operation. After discovering Solo's assistance to Enfys Nest on Savareen, Kallus declared Solo an enemy of the Empire. Believing Solo was smuggling supplies to Nest, he ordered IG-88 to inspect Solo's cargo. However, Solo's co-pilot, Chewbacca, attacked Kallus and IG-88. Despite Solo and Chewbacca's escape, Kallus and IG-88 returned to the shuttle. Kallus instructed two Star Destroyers to prevent the Falcon from passing. The Falcon, however, managed to slip between the Star Destroyers and escape. Kallus was astonished by Solo's recklessness.

Kallus participated in the cleansing of the planet Lasan in 7 BBY. This planet was the homeworld of the Lasat, the species Kallus hated due to his experience with the mercenary years prior. The battle resulted in the near-total destruction of the Lasat species and their expulsion from their homeworld. Before the end of the cleansing of Lasan, Kallus received a J-19 bo-rifle from a defeated member of the Lasan High Honor Guard. This gifting of the bo-rifle surprised and greatly impacted Kallus. Unbeknownst to the Imperial agent, this was the Lasat custom of Boosahn Keeraw.

Kallus later claimed to have ordered the use of T-7 ion disruptor rifles against the Lasan population, but he later admitted this was a lie to provoke Garazeb Orrelios. These rifles were capable of disabling starships and had devastating effects on living beings. The Imperial Senate ultimately banned these weapons due to their destructive power.

Five years before the Battle of Yavin, a rebel cell was active on Lothal, conducting attacks on Imperial targets. These actions attracted the attention of the Imperial Security Bureau, which dispatched Kallus to Lothal to address the situation. He arrived on a shuttle and requested permission to dock with the Lawbringer, an Imperial I-class Star Destroyer orbiting the planet. Captain Hiram Zataire granted Kallus permission to dock, and they later dined together aboard the Lawbringer. Kallus's intention was to assess Zataire's loyalty to the Empire. They discussed Zataire's son, a vocal critic of the Empire, after Kallus noticed that the wine served by the captain was from Alderaan, a planet considered rebellious by the Empire, and had been a gift from his son. Kallus realized that Zataire's son was on Alderaan, providing the ISB with an opportunity to arrest him. Zataire pleaded with Kallus not to harm his son. The ISB Agent stated that the law allowed flexibility as long as Captain Zataire cooperated fully with Kallus's operations on Lothal, a request to which the captain agreed. Kallus's first order was for the Lawbringer to descend from orbit and hover over Capital City, displaying the Empire's power to the citizens of Lothal.

As the Lawbringer hovered over the capital, the rebels launched an operation to steal crates of blasters and food. That night, Kallus inspected the damage. Commandant Cumberlayne Aresko, a leading military officer on Lothal, briefed him on the attack. Kallus explained that it was part of a pattern that, if unchecked, could lead to a larger rebel movement.

To eliminate the rebels, Kallus devised a trap by leading them to believe they had discovered the location of Wookiee slaves held by the Empire. Although the Empire did hold Wookiee prisoners, the rebels received false information about their location. The Ghost docked with a Gozanti-class cruiser that the rebels believed held the slaves. Jedi survivor Kanan Jarrus, Lasan High Honor Guardsman Garazeb Orrelios, Mandalorian warrior Sabine Wren, and the droid C1-10P boarded the ship, while the Lawbringer emerged from hyperspace and captured both the Gozanti-class cruiser and the Ghost. Kallus and his stormtroopers boarded the cruiser and attacked the rebels. Wren and the droid disabled the gravity generator, surprising the Imperials and allowing the rebels to escape. Kallus captured Ezra Bridger, a new member of the Ghost crew who had boarded to warn the others about the Lawbringer's arrival.

With Bridger in custody, Kallus planned to use him to lure the rebels back, believing they would attempt a rescue. Kallus spoke to Bridger in his cell, explaining the plan. Bridger doubted that the Ghost would return, as he had never seen anyone risk their lives for others. Despite Bridger's skepticism, the rebels did return, although the boy escaped from his cell on his own. The Ghost landed in the lower hangar, which the Imperials detected. Kallus ordered all stormtroopers to converge on the lower hangar, where he would meet them, but he diverted some to the upper hangar. Bridger, listening to Imperial communications through a stolen stormtrooper helmet, posed as a stormtrooper and suggested that the lower hangar might be a diversion.

Kallus led his stormtroopers to the lower hangar, where he discovered that Bridger had rejoined the rebels. The rebels fled upon seeing the Imperial troops, who pursued them and fired on the Ghost. As the rebel ship prepared to depart, Kallus noticed graffiti art on the hangar floor, drawn by Wren, and realized it was an explosive. He ordered his men to take cover, but the explosion ripped through the hangar, injuring some of his men. Kallus survived, thrown forward by the blast. The damage caused a hull breach, and many stormtroopers were blown into space. Kallus was nearly pulled into space but managed to hold onto the hangar deck until a force field sealed the breach. He remained in the hangar as the Imperials recovered, and he was brought the helmet stolen and left behind by Bridger. This prompted Kallus to realize that Bridger had overheard that the true location of the Wookiee prisoners was the spice mines of Kessel.

Knowing the rebels would seize the opportunity to rescue the Wookiees, Kallus allowed them to reach Kessel, where they freed the Wookiee slaves from the Imperial forces stationed in spice mine K76. Before the rebels could escape, Kallus and additional Imperial forces arrived, firing on the Ghost and forcing it to flee while the remaining rebels stayed in the mine. Kallus and a squadron of stormtroopers landed and advanced on the rebels, forcing them to take cover. The rebel leader, Jarrus, stepped forward and ignited his lightsaber, revealing himself as a Jedi who had survived the destruction of the Jedi Order. Kallus ordered his soldiers to focus fire on Jarrus, allowing the other rebels and Wookiees to enter a cargo container to be picked up by the returning Ghost.

While the stormtroopers focused on the rebels, Kallus followed Bridger to a walkway overlooking the mine, where the boy had gone to rescue Kitwarr, a young Wookiee who was being chased by a stormtrooper. Kallus arrived to see Bridger attack the stormtrooper with an energy slingshot, knocking the trooper over the railing. Kallus, believing Bridger was Jarrus's apprentice, prepared to kill the boy, but the Ghost arrived. Jarrus, standing atop the ship, deflected Kallus's blaster fire back at him. Kallus was struck, falling over the railing and clinging to it as the Ghost escaped. The stormtrooper, who had also fallen, clung to the railing and asked if Jarrus was the first Jedi Kallus had seen. Kallus responded by kicking the trooper off the railing, sending him falling into the mines.

Kallus left the spice mines and returned to the Lawbringer, which remained in orbit over Kessel. From the ship, Kallus contacted the Grand Inquisitor, a dark side warrior tasked with hunting down Jedi survivors. Kallus informed the Inquisitor, via hologram, about the events on Kessel and the Jedi leading the rebel cell. The Inquisitor acknowledged that Kallus had done well to inform him.

After the successful rescue of the Wookiees, the rebels undertook a mission to steal T-7 ion disruptor rifles from Garel. Minister Maketh Tua of Lothal was attempting to acquire the illegal weapons from Amda Wabo, an Aqualish weapons manufacturer. The rebels secured the disruptors before the Imperials, disrupting the arms deal and taking the weapons, along with two droids, R2-D2 and C-3PO. These droids were part of the deal on orders from Governor Arihnda Pryce of Lothal and were secretly working for the rebellious Senator Bail Organa of Alderaan. After the rebels stole the weapons, Tua contacted Agent Kallus and informed him of the events on Garel. Kallus recognized the Ghost crew's involvement. C-3PO, believing he was a prisoner of criminals, attempted to send a distress signal to Governor Pryce, but the signal was rerouted and intercepted by Kallus aboard the Lawbringer. C-3PO provided Kallus with the Ghost's location, and Kallus falsely assured the droid that help was on the way.

The rebels returned to Lothal, intending to sell the disruptors to the Devaronian crime lord Cikatro Vizago. Before the deal could be completed, Kallus and his forces arrived in Imperial Troop Transports, accompanied by All Terrain Defense Pods. While the stormtroopers and AT-DPs engaged most of the rebels, Kallus challenged Orrelios to a duel with bo-rifles. The enraged Lasat accepted, and the two fought while the rebels battled the Imperial forces and destroyed the disruptors. By the end of their duel, during which Kallus taunted Orrelios about the fall of Lasan, Orrelios was near defeat. Kallus attempted a fatal blow, but Bridger used the Force to push Kallus away. This allowed the rebels to escape, leaving Kallus to watch the Ghost fly away.

Some time passed, and the rebels devised a strategy for infiltrating the Academy for Young Imperials located on Lothal. Their goal was to pilfer a decoder from Kallus' office, which was situated within the Academy. This decoder was crucial, as it would reveal the whereabouts of a massive and potent kyber crystal that the rebels intended to obliterate. Bridger was selected for the infiltration mission, adopting the guise of a cadet named Dev Morgan. After spending several weeks within the facility, Bridger initiated his plan to discreetly enter Kallus' office. Upon his arrival, he observed Kallus exiting the office. Bridger, having secured a position as an aide in the Imperial Complex through winning a cadet tournament, arrived wearing a helmet to conceal his identity, carrying a datapad that he was ostensibly delivering. The rebel proposed leaving it on the ISB Agent's desk, but Kallus opted to take it himself and departed. Once Kallus had left, Bridger attempted to enter the office but was intercepted by a fellow cadet, Zare Leonis, who recognized that the theft would trigger an alarm. Leonis, who also held anti-Imperial sentiments, joined forces with Bridger, and they resolved to steal the decoder as a team.

The following day, the two rebels put their scheme into action. Bridger utilized a ventilation shaft to stealthily access Kallus' office from above. Simultaneously, Leonis requested permission to enter Kallus' office. The cadet informed Kallus that parts for the Agent's podracer had arrived. Kallus questioned the order, stating that he had neither requested nor required any podracer parts. Leonis insisted that the parts were intended for Kallus, thereby stalling the Agent and providing Bridger with the time needed to steal the decoder. Bridger employed the Force to levitate the decoder, causing it to float upwards towards the opening of the ventilation shaft. Kallus noticed Leonis' surprised reaction to the Force being used and turned around, but Bridger had already completed the theft before the Agent could see him. Leonis inquired one last time if Kallus would be signing for the podracer parts, but Kallus declined, maintaining that it was a mistake.

While navigating his way back through the vents, Bridger discovered that he and another cadet, Jai Kell, had demonstrated skills that piqued the interest of the Inquisitor, who was scheduled to arrive on Lothal the next day to evaluate them. Consequently, Bridger, Leonis, and Kell planned an escape from the Academy. However, Leonis remained behind, as he had unresolved matters at the Academy. To avoid suspicion, he pretended to try to prevent the rebels from escaping. Upon the Inquisitor's arrival, Kallus was present and was briefed on the escape. The Inquisitor identified "Cadet Morgan" as Bridger, recalling their encounter on Stygeon Prime, thus confirming that Bridger's presence was an act of infiltration.

Following the incident at the Academy, Agent Kallus received the assignment of apprehending Jovan, his former friend and mentor, who had begun exploiting his position as an Imperial lieutenant on Ganthel for personal enrichment. Kallus successfully tracked Jovan down to the small Lothalian town of Dinar. The two engaged in a physical altercation in an alleyway. Jovan managed to escape, commandeering a stolen TIE starfighter, but Kallus pursued him across the plains of Lothal in another fighter. Despite being a less skilled pilot than his former acquaintance, the ISB agent managed to bring the rogue lieutenant down by employing a maneuver that he had learned from him during their amicable past. Defeated, Jovan pleaded with Kallus to release him out of respect for their past friendship, but the agent refused to allow his personal feelings to override his loyalty to the Empire. Kallus then returned to the Imperial headquarters on Lothal while his former friend was taken to jail.

The Imperial authorities on Lothal organized a series of celebrations for Empire Day, commemorating the fifteenth anniversary of the Clone Wars' conclusion and the Galactic Empire's establishment. On Empire Day, the local government also initiated a search for a Rodian named Tseebo, who had stolen crucial information from the Imperial Information Office where he was employed. Kallus participated in the search for the Rodian, even during the Empire Day parade in Capital City. During the parade, the rebels destroyed an experimental TIE Advanced v1 starfighter. After they fled the scene, Kallus assumed command of the investigation to locate them and requested schematics of the city's ventilation systems, sewers, and other potential hiding places for the rebels. Minister Tua demanded that the rebels be punished for disrupting Empire Day, and Kallus assured her that he shared her desire for their punishment, but their primary objective remained finding Tseebo.

Having escaped the scene of the attack, the rebels sought refuge at Ezra Bridger's childhood home, where they discovered Tseebo hiding. Tseebo had been a friend of Bridger's parents before their disappearance several years prior. The rebels examined the information that Tseebo had stolen and decided to extract him from the planet to analyze the secrets he possessed. To facilitate his escape from the city, the rebels commandeered an Imperial Troop Transport. Kallus learned of the hijacking and contacted Commandant Aresko, who had established a blockade at the city's edge, to warn him of the approaching rebels. Despite this, the rebels blasted their way through the blockade and escaped to the city's outskirts.

Kallus arrived in his own ITT and pursued the rebels out of the city. During the pursuit, Kallus contacted the Inquisitor to inform him that the rebels had breached the main city gate and were heading south. The Inquisitor, who was boarding his own TIE Advanced fighter, suspected that the Ghost would be waiting and instructed Kallus to slow their escape. Kallus' men created a breach in the hijacked ITT and attempted to board it, while Kallus' ITT continued firing. Kallus made his way to the roof of his ITT and jumped onto the rebels' ITT just as the Ghost arrived. Orrelios fired at Kallus, seeking to end their long-standing conflict once and for all, as Kallus ordered his ITT to fire on the Ghost. The Ghost, in turn, destroyed Kallus' ITT. Orrelios, having missed his initial shot, fired at Kallus again, knocking him from the side of the rebels' ITT, although he managed to hold onto the back of the vehicle.

The rebels initiated their escape onto the Ghost, heading to the top of the stolen ITT to quickly board the ship. Kallus climbed back atop the ITT in time to see Tseebo stepping onto the ramp that the Ghost had lowered. He fired towards the rebels, prompting Jarrus to ignite his lightsaber and confront the ISB Agent. The Jedi deflected Kallus' shots before jumping aboard the Ghost, which flew away to escape Lothal. As it departed, Kallus contacted the Inquisitor to confirm that Tseebo was aboard the rebel ship. The Inquisitor and his fighters pursued the rebels off of Lothal, but were ultimately unsuccessful in stopping them or capturing Tseebo.

Following the rebel attack on the Empire Day celebrations, Governor Arihnda Pryce mandated a widespread crackdown on sedition and dissent across the planet. Agent Kallus was appointed to oversee the crackdown, and all military personnel on Lothal, including Imperial cadets, were enlisted to participate. Under Kallus' command, Imperial cadets were tasked with questioning residents about illegal activities in their neighborhoods, apprehending criminals, detaining the children of fugitives, and leading stormtroopers on law enforcement raids. Kallus' strict approach to crime and his orders to detain children caused unease among some Imperials, such as Cadet Zare Leonis and Lieutenant Chiron, but they understood the risks of openly challenging his orders, as the crackdown had the support of the governor and all Imperial ministries on Lothal.

Knowing that the rebels regularly stole foodstuffs from the Empire, Kallus decided to exploit this habit to his advantage. The agent contaminated supplies and allowed the rebels to seize them, with the intention that their contents would poison anyone who consumed them. As anticipated, several residents of the refugee settlement of Tarkintown ingested the poisoned food and became ill, prompting Garazeb Orrelios to independently raid the Imperial compound in search of an antidote. Upon reaching the medical facility, Orrelios found Kallus waiting for him with four stormtroopers. The ISB agent engaged the Lasat in combat and initially gained the upper hand. However, the situation reversed when Hera Syndulla, Kanan Jarrus, Sabine Wren, and Ezra Bridger arrived to rescue their friend, overpowering the Imperials and successfully escaping the compound.

Having failed to thwart the rebels on Empire Day, Kallus formulated a plan to lure them into a trap and eliminate them. The plan involved Senator Gall Trayvis, who was working for the Empire by posing as a dissenting voice to monitor and lure rebel forces across the galaxy into traps. Trayvis disseminated a message via a hacked HoloNet News transmission, stating that he would meet the rebels in the Lothal City Capitol Building on Lothal. The rebels fell for the bait, and Kallus prepared the trap, although Minister Tua questioned its likelihood of success. The plan appeared to be working when the rebels arrived in the Senate Building, as Kallus and his forces managed to corner Jarrus, Bridger, Hera Syndulla, and Trayvis. The rebels had arrived believing that Trayvis was in danger and that the Empire intended to capture him. Kallus identified Jarrus and Bridger, referring to the latter as "Jabba" in reference to their initial encounter, and encountered Syndulla for the first time. He demanded that they reveal the location of Orrelios and Wren or face execution by firing squad. The Imperials were caught off guard when Orrelios and Wren, who had entered the building from the roof, threw smoke bombs between the rebels and Imperials, allowing the rebels to fight their way out and escape.

The rebels managed to escape from being cornered and retreated into the sewers beneath the Senate Building, with Kallus and his troopers in pursuit. The rebels split up, with Bridger and Syndulla taking Trayvis while the others fled in a different direction. Trayvis revealed his true allegiance to Syndulla and Bridger, but they managed to knock him unconscious just before they reunited with the other rebels. Kallus and his forces arrived as Jarrus used the Force to stop a large fan that stood between the rebels and their freedom, and the ISB Agent ordered his forces to open fire on Jarrus. However, the Imperials were too late, as the rebels successfully escaped.

The Spectres' activities eventually attracted the attention of Grand Moff Wilhuff Tarkin, who journeyed to Lothal. Agent Kallus, along with Minister Maketh Tua and the Inquisitor, formed part of the grand reception that welcomed Tarkin's shuttle at the Imperial headquarters. During the meeting, Tarkin rebuked Kallus for allowing the rebels to attack Imperial personnel, destroy Imperial property, and disrupt the Empire's trade. Kallus, embarrassed to admit failure, responded that he had exhausted every resource to capture them but that the rebels had proven elusive. When Minister Tua mentioned that the rebel leader Kanan Jarrus was a Jedi, a skeptical Tarkin asserted that all the Jedi had perished during the Great Jedi Purge. Kallus believed that Tarkin's arrival would provide him with the necessary resources to capture the insurgents.

After the Spectres ambushed an Imperial supply convoy in the town of Jalath, Kallus was present at a meeting where Tarkin ordered the Inquisitor to execute the Imperial officers Commandant Aresko and Taskmaster Grint for their repeated failures to stop the Lothal rebel cell. Agent Kallus and Minister Tua were visibly appalled by the Grand Moff's actions, as their two men had been incompetent but loyal Imperials. Nevertheless, Kallus took it as a warning that failure in the Empire would no longer be tolerated. Tarkin then instructed Agent Kallus to deploy probe droids throughout Lothal to locate the rebels. Disturbed by the execution of Aresko and Grint, Kallus vowed to avoid such a fate himself.

Under Tarkin's orders, Agent Kallus and the Inquisitor devised a plan to trap the Spectres at the Imperial communications tower. Seeking to counter Imperial propaganda, the Spectres had hijacked the tower complex to broadcast a propaganda message to neighboring systems. Following the rebel assault, Agent Kallus and the Inquisitor arrived with a force of three patrol transports and two Imperial Troop Transports, surrounding the complex and trapping the rebels. Kallus personally confronted Kanan outside the communications tower. When Kanan refused to surrender, the Inquisitor engaged the Jedi in a lightsaber duel. Following a brief confrontation, Kanan's rebel comrades managed to escape. Kallus managed to capture Kanan, but at the cost of one patrol transport.

At dawn, Agent Kallus delivered the captured Jedi Kanan to Grand Moff Tarkin, who commended the Inquisitor for his work. Before Tarkin could interrogate Kanan, Kallus reported that the Spectres had gained control of the tower's transmitter. Kallus listened to Ezra's broadcast and expressed concern at Tarkin's orders to destroy the communications tower. Tarkin's destruction of the Lothal communications tower disrupted offworld communications on Lothal and neighboring systems, forcing local Imperial authorities to rely on courier droids. Kallus and Tarkin later oversaw the interrogation of Kanan, who, per standard Imperial procedure, was injected with a truth serum by an interrogator droid. Despite Kallus's best efforts, Kanan's Jedi training enabled him to resist the interrogation droid's mind probes. Dissatisfied with Kallus' results, Tarkin ordered the Inquisitor to torture Kanan, who still refused to divulge any information on the rebellion. Frustrated by Kanan's resistance, the Imperials transferred the captive Jedi to the Mustafar system.

Agent Kallus remained on Lothal while Grand Moff Tarkin and the Inquisitor traveled to the Mustafar system with their Jedi captive. However, Kanan's rebel comrades launched a mission to rescue the Jedi. During that mission, the Inquisitor was killed, and the Grand Moff's Star Destroyer Sovereign and several TIE starfighters were destroyed by the rebels, who managed to flee into hyperspace with the help of the rebel network. Following the events in the Mustafar system, Agent Kallus was present at the Imperial headquarters' hangar bay when Grand Moff Tarkin arrived in a shuttle with the Emperor's Fist, Darth Vader. During the meeting, the operative expressed concern that the events on Mustafar would lead people to perceive the Empire as weak and vulnerable. Governor Tarkin disagreed and assured Agent Kallus that Lord Vader would crush the Spectres and their nascent rebellion. Kallus was assigned to Vader's direct command as the Sith Lord and Tarkin initiated a besiegement campaign to punish Lothal and draw out the rebels.

As Vader's Lothal crackdown unfolded, Kallus met with Minister Tua to discuss her unsuccessful efforts to locate the Spectres. Under Tua's direction, the Imperial planetary authorities had heightened security and imposed a planetary curfew in accordance with Vader and Tarkin's demands to "squeeze" Lothal. However, Minister Tua doubted that such enhanced security measures would succeed, correctly believing that the rebels had already departed the planet. Frustrated, Kallus countered that Tarkin expected results due to the destruction of his Star Destroyer Sovereign. At that moment, Darth Vader interrupted their conversation and suggested that the Imperials lure the rebels back to Lothal and trap them there.

When the Minister expressed reservations about "punishing" the Lothalian population, the Emperor's Fist responded that she could raise her concerns with the Grand Moff himself, adding that Governor Tarkin had scheduled a meeting with her the following day. When Minister Tua expressed fear that she would meet the same fate as Commandant Aresko and Taskmaster Grint, an unsympathetic Agent Kallus commented that he and Lord Vader would "manage in her absence." Fearing for her life and disturbed by the Empire's increasingly oppressive measures, the frightened dignitary secretly contacted the Spectres and made arrangements to defect to the rebellion. However, Kallus suspected Tua's treason and dispatched a probe droid to monitor her movements.

The following day, Agent Kallus drove Minister Tua in a landspeeder to a disembarkation station where an Imperial shuttle awaited to transport her to Governor Tarkin. Kallus was escorted by several stormtroopers to deter any rebel attack. However, the Spectres sprang into action and attempted to rescue the dignitary. During the ensuing skirmish, Kallus fought against the Jedi Kanan, who had disguised himself as a Stormtrooper Commander. Tua ran to the shuttle but was killed in an explosion that had been deliberately orchestrated by Vader to discredit the rebels. Aware that his probe droid was observing the fray, Kallus feigned anger and accused the rebels of murdering Minister Tua. Despite his efforts, the rebels managed to escape, prompting the Emperor's Fist to instruct the ISB Agent to lay siege to Lothal.

After the rebels stole a second Imperial shuttle and escaped Capital City, Kallus reported to Vader again and informed him that the rebels had not yet left Lothal. To draw the rebels out, the Dark Lord ordered the Agent to destroy Tarkintown, a refugee settlement that the rebels had assisted in the past. Kallus complied with Vader's orders and sent troops to raze the settlement and round up its inhabitants, who were imprisoned. Later, the rebels managed to escape Lothal with the assistance of the "galactic entrepreneur" Lando Calrissian's droid W1-LE, who helped them build sensor buoys that confused the Imperial forces tracking them. However, Vader had allowed the rebels to escape to locate the Phoenix Cell, which operated a fleet in deep space. In the Emperor's Fist's subsequent attack run, the Spectres suffered heavy losses and were forced to retreat. Upon the Sith Lord's return to their destroyer's bridge, Kallus congratulated Vader on his victory, only for the Sith Lord to demand the bridge be cleared, forcing Kallus to leave, so he could speak with the Emperor.

Following the Empire's triumph over the Phoenix Squadron, and despite the rebels' ultimate escape, Kallus received a promotion of some kind and was assigned the task of assisting Admiral Kassius Konstantine in locating the rebels. While on the bridge of the Relentless, an officer informed him that Clone trooper Wolffe had reported an encounter with Jedi on the desert planet of Seelos. Although Konstantine expressed skepticism given the clone's history of making delusional distress calls, Kallus insisted that all leads should be pursued and dispatched a probe droid to investigate.

Wolffe's intelligence proved accurate, and the probe droid successfully located Kanan and his rebel cell, who were perennial adversaries of Kallus. Upon arriving above Seelos, Commander Kallus and Admiral Konstantine issued an ultimatum to Wolffe, demanding that he and his fellow clones surrender the rebels or face "total and immediate destruction." Instead, Wolffe's associate, Captain Rex, challenged the agent and mocked the stormtroopers under his command. Undeterred, Kallus first deployed a squadron of TIE fighters to the planet. After the rebels destroyed his TIE fighters, the ISB Commander personally led three AT-AT walkers against the clones' lone AT-TE walker.

Despite the onset of a sandstorm, Kallus ordered the assault to proceed. Unable to see or detect their targets, the Imperials were caught off guard, and one walker was destroyed by a precisely aimed shot to the neck from Ezra Bridger. Kallus then ordered the remaining walkers to fire in the direction of the shot, driving the ancient walker out of the sandstorm just as the rebel ship lifted off. Unaware that Admiral Konstantine had departed the Seelos system to rendezvous with an Inquisitor and was no longer able to provide air support, Kallus ordered his two remaining AT-AT walkers to continue the assault against the "obsolete" Clone troopers.

However, the clones refused to yield, and their old walker, despite sustaining numerous hits, still had one good fight left in it. To the agent's disbelief, the clones brought their walker right up against Kallus' walker and rammed its legs, causing it to lose balance. Rex then jumped onto the main cannon and openly challenged the walker's crew, deriding them as cowards. Thinking the clone suicidal, Kallus ordered his gunners to "finish him." Before they could do so, Kallus' AT-AT walker was attacked by the rebel ship Phantom and the second AT-AT walker, which had been hijacked by the rebels. Completing the rout, Rex fired a shot from the AT-TE's mass driver cannon directly into the neck of Kallus's own walker, crippling it. Kallus and his bridge crew managed to escape the ruined walker on a speeder, though one was left frantically running after it.

Following the events that transpired on Seelos, Kallus and Konstantine remained stationed on the Relentless alongside the Fifth Brother. On one particular occasion, a crew member detected an energy spike originating from a derelict Republic medical station. While both Kallus and Konstantine were doubtful that it signified anything important, the Fifth Brother held a different opinion and chose to investigate the matter himself. It was there that the Fifth Brother, accompanied by another Inquisitor known as the Seventh Sister, encountered the rebels Ezra, Sabine, Chopper, and Zeb, leading to a skirmish. Despite the combined efforts of the two Dark Side Adepts, the four rebels managed to escape, successfully warning their fellow rebels about the existence of additional Inquisitors.

Later, Kallus oversaw a blockade that had been set up around the planet Ibaar, as he correctly suspected that the rebels would attempt to assist the overworked population. His fleet successfully fended off an attack from Phoenix Squadron, resulting in the destruction of a CR90 corvette and the death of the Phoenix Leader. The rebels later retaliated with a prototype Bladewing starfighter, which managed to break through the blockade, allowing their supplies to reach the planet's surface. The sheer power displayed by the single fighter left Kallus utterly shocked.

Not long after the Ibaar incident, Swain, a female officer who had been under Kallus' tutelage, experienced a moment of clarity. Realizing that she could no longer be part of an organization that oppressed ordinary citizens, she decided to defect, along with her colleague Cogon. Together, they stole a Lambda-class T-4a shuttle. However, Kallus was able to track the shuttle's signal. Aboard the Relentless, he pursued his former protégée to the planet Thrad, where she and her accomplice planned to travel to Klonoid to join a local rebel cell. The Imperial agent pursued Swain and Cogon through the streets, eventually cornering him in an alley. Without his bo-rifle, Kallus appeared to be at Swain's mercy. However, two stormtroopers arrived just in time, shooting Cogon in the back. The agent and his former protégée briefly fought, until Kallus was once again pinned to the ground, seemingly helpless. But Kallus, surprising Swain, retrieved a backup weapon from under his armor and stunned her. He then contacted Admiral Konstantine, instructing him to destroy a suspicious ship attempting to leave the planet—the very ship that Swain and Cogon were supposed to board. Ultimately, the agent had Swain taken aboard Admiral Konstantine's Star Destroyer for interrogation and reported his success to Lord Vader.

Kallus subsequently received a transmission from Admiral Brom Titus, who boasted about capturing the rebels Jun Sato and Ezra Bridger. Kallus agreed to meet Titus at his prototype Imperial Interdictor and advised him to keep Bridger under heavy guard, but Titus disregarded his warnings. Upon Kallus' arrival, he discovered the Interdictor had been destroyed and the rebels had escaped, leaving a humiliated Titus in an escape pod, much to Kallus's secret amusement.

After the Inquisitor known as the Seventh Sister detected a rebel presence on the planet Garel, Agent Kallus ordered Admiral Konstantine to redeploy the Imperial fleet from Lothal to Garel. He successfully persuaded the Seventh Sister and the Fifth Brother to combine their forces in order to capture Phoenix Squadron, which included the Spectres, his long-standing adversaries. Kallus also led the ground assault, attempting to capture the Spectres. However, Ezra Bridger utilized the Force to throw Kallus against a wall, knocking him unconscious. After the Spectres escaped, Kallus contacted Admiral Konstantine to inquire about the rebel fleet's location. Konstantine reported that he was unaware of their position, as the rebels had already jumped into hyperspace.

Agent Kallus and Admiral Konstantine later commanded an Arquitens-class command cruiser in an attempt to capture the Ghost above the planet Nixus. Earlier, the crew of the Ghost had rescued two Lasat refugees named Gron and Chava the Wise, who were searching for the mythical Lasat homeworld of Lira San. Despite their best efforts, the Ghost managed to jump into hyperspace before the Imperials could trap them. However, the Imperials had managed to capture the Weequay pirate Hondo Ohnaka, who had initially informed the crew of the Ghost about the Lasat refugees. Ohnaka was forced to cooperate with the Imperials and managed to locate the Ghost using a tracker that had been planted in his communications device.

Kallus' Imperial light cruiser tracked the Ghost to an imploded star cluster located in Wild Space. Upon exiting hyperspace, Kallus gave the rebels one minute to surrender before destroying their starship. Recognizing that Kallus was the prophesied "warrior" from Lasat legend, Zeb used his bo-rifle to guide the Ghost through the unstable star cluster. When the rebels refused to comply with his ultimatum, Kallus dispatched two TIE fighters to pursue the Ghost, but they were torn apart by the star cluster's gravitational forces. Kallus' light cruiser then opened fire on the Ghost, but every shot missed its target. Kallus was forced to withdraw his cruiser after it began to sustain damage from the gravity field. While Kallus hoped that the Ghost would be destroyed, he was disappointed when the rebel freighter successfully entered the star cluster.

Kallus' subsequent plan involved setting a trap for the crew of the Ghost at an Imperial construction module orbiting the desert planet of Geonosis. Despite successfully luring the rebels into the trap, his forces failed to capture them, and the rebels managed to escape into space. During the skirmish, Kallus engaged the Lasat in hand-to-hand combat. When Zeb attempted to escape in an escape pod, Kallus followed him into the pod, attempting to subdue him. The escape attempt resulted in Kallus breaking his leg and the pod crashing onto the frozen Geonosian moon of Bahryn.

Zeb showed mercy to Kallus, refusing to defeat his rival in an unfair fight. The two enemies were compelled to cooperate to avoid freezing to death and being killed by the bonzami, dangerous predators that inhabited the moon. When the creatures attacked and Kallus retrieved his weapon, he refrained from killing Zeb and instead helped him fight off the predators. Having saved each other's lives, the two adversaries began to open up to each other, forming an unexpected bond. After their heat source failed, Zeb discovered a small meteorite that was still glowing and emitting heat, which he gave to Kallus. When the bonzami attacked them once more, they managed to escape the underground cavern and reach the surface after a struggle. Here, Kallus had the opportunity to shoot Zeb but chose to save him from the bonzami instead.

The next morning, the crew of the Ghost returned for Zeb, having picked up his transponder. Zeb invited Kallus to join them, assuring him that he would be treated fairly. However, Kallus declined, opting to wait for the Imperials. After the rebels departed, Kallus was rescued by a passing independent trader, as the Empire had exhausted its allocated time and resources searching for him. Upon finally returning to the Imperial fleet, Kallus encountered Admiral Konstantine, who barely acknowledged him, much to Kallus' disappointment after witnessing the camaraderie Zeb had shown him. After limping back to his quarters, he placed the meteorite Zeb had given him on a shelf before reflecting on his sobering experience with his enemy, now privately questioning the Empire.

Following his encounter with Zeb, Kallus' doubts began to intensify. Ultimately, they drove him to defect to the rebellion. He operated as a spy under the alias Fulcrum, providing secret information to the rebellion through broadcasted messages.

In 2 BBY, Kallus appeared to still be hunting the rebels alongside Governor Pryce, Admiral Konstantine, and Grand Moff Tarkin. Pryce then revealed that Grand Admiral Thrawn and his Seventh Fleet would be spearheading their efforts against the rebels. Upon learning that Thrawn had recently been promoted for his actions during the Battle of Batonn, Kallus remarked that the civilian casualties outnumbered the insurgent casualties. In response, Governor Pryce informed him that there were no longer any rebels in the Batonn sector. Later, Kallus accompanied Pryce and Konstantine to Yarma, where the Phoenix rebels had raided the Imperial floating junkyard Reklam Station. Kallus was present when Thrawn instructed Pryce and Konstantine to allow the rebels to escape with their "meager reward" of five stolen Y-wing starfighters.

Subsequently, Kallus informed the rebels that there were cadets at the Imperial Skystrike Academy who wished to defect to the rebellion. He then accompanied Governor Pryce to the Skystrike Academy, where she had arrived after hearing rumors of cadets attempting to defect. Pryce had Captain Vult Skerris conduct a combat simulation in space to draw out the defectors. Her plan was successful, and the Imperials killed one of the defectors and captured the remaining three. In an interrogation room, Kallus noticed Sabine, and when she revealed her identity to protect the other two cadets, Pryce ordered Kallus to take the other two cadets, Hobbie and Wedge, to another cell. Before Kallus led the two cadets to their cell, Sabine remarked to Kallus, "looks like they have found someone who can do your job."

When Sabine broke free from Pryce's grasp and fled with Hobbie and Wedge, the Imperials trapped them behind blast doors. Kallus suddenly appeared and opened one of the doors, advising them on how to escape. He then instructed Sabine to send his regards to Garazeb Orrelios, stating that they "we're even now." Kallus then closed the blast door after the three had left and concealed himself until the alarm was deactivated.

Later, Agent Kallus accompanied Governor Pryce on the bridge of a Star Destroyer. Kallus complimented the Governor on her plan to lure the Spectres into a trap at a fuel depot. However, Pryce responded that her plan would only succeed if she managed to capture the rebels. Kallus was present when Pryce dispatched Imperial forces to investigate a distress signal originating from Agamar.

Following his encounter with Sabine at the Skystrike Academy, Kallus learned that the Empire was developing a new weapon at the Imperial Armory Complex, and he subsequently contacted Phoenix Squadron, who were planning to attack the factory. Due to the high rate of malfunctioning vehicles produced by the Lothal Imperial factory, the Imperial High Command sent Grand Admiral Thrawn to restore order and investigate the factory for saboteurs. Indeed, a rebel cell led by former Governor Ryder Azadi had been sabotaging the vehicles.

Alongside Governor Pryce and Lieutenant Yogar Lyste, Agent Kallus summoned the factory workers for an assembly. Thrawn then delivered a speech criticizing the workers for their poor craftsmanship. He then compelled former farmer Morad Sumar, a member of Azadi's cell, to demonstrate a 614-AvA speeder bike. Due to a defective engine, the bike exploded during the test demonstration, resulting in Sumar's death. Kallus was appalled by Thrawn's actions, while Governor Pryce smirked. Thrawn then ordered his Imperial subordinates to lock down the factory and interrogate the workers. However, the rebel infiltrators Ezra, Kanan, and Chopper managed to evade the screening and proceeded to Section A2.

While Thrawn and Governor Pryce discussed the secrets concealed within the factory's Section A2, Kallus requested more information about the project from his superiors so that he could question the workers more effectively. Pryce responded that all Kallus needed to know was that the Grand Admiral had a new fighter initiative. When Kallus expressed skepticism about the possibility of a single fighter altering the course of the war, Thrawn replied that victory and defeat were determined by the smallest details. Kallus was present when Thrawn ordered another worker to demonstrate an AT-DP walker. At Thrawn's command, Kallus released the walker from its station. When the walker collapsed, Thrawn signaled for his men to arrest the worker.

Later, Kallus and Lieutenant Lyste visited Thrawn's Office, which contained various objects related to the Spectres. When Thrawn inquired about one of Sabine's graffiti art pieces, Lyste dismissed it as merely a section of a retaining wall. In contrast, Kallus, being more perceptive, recognized the drawing as a starbird, a creature of light that had been adopted as a symbol of Phoenix Squadron. Kallus interpreted the starbird as a symbol of the rebel's unwavering commitment to victory. Thrawn concurred and theorized that the Spectres had a special connection to Lothal.

When Thrawn inquired if they had discovered any more subversives, Lyste informed the Admiral that two workers had disappeared following Thrawn's speech but had left behind their uniforms. Kallus suggested issuing an alert, but Thrawn advised against it, believing that the rebels were already inside the factory and had found new disguises. When Kallus asked Thrawn whether he believed the rebels were after more than just sabotage, the Admiral responded that the rebels were after the contents of Section A2 and sent Kallus and Lyste to secure it.

Spotting Ezra and Kanan in their stormtrooper disguises with their droid, Kallus directed them into a turbolift under the pretense of ordering them to secure a perimeter. Inside the lift, Kallus introduced himself to the rebels, who engaged him in combat. However, Kallus managed to convince them that he was an ally by identifying himself as Fulcrum and reciting the code phrase "by the light of Lothal's moons." Kallus also reminded them that he had befriended Zeb on Bahryn and helped Sabine escape. While Chopper trusted Kallus, Ezra and Kanan were slower to trust their former adversary.

Nevertheless, Kanan persuaded Kallus to help them send a signal to his local contact, Ryder Azadi. Kallus led the rebels to a communications station and pretended to fight them. The rebels used their blasters and lightsabers to stun the stormtroopers and officer at the station. Kallus then allowed Chopper to upload Kanan's comlink from the station's port. After the rebels had contacted Ryder, Kallus instructed them to head to the east gate, where they would find an AT-DP walker in the hangar. To create the impression that Kallus had resisted, Ezra hurled the ISB agent against the glass monitor. Although injured by the shattered glass, Kallus was pleased that he had aided his new allies in their escape.

Thanks to Kallus' assistance, Ezra, Kanan, and Chopper managed to escape the factory on the AT-DP walker and rendezvous with Ryder's cell. They also successfully transmitted the stolen plans to Phoenix Squadron, which discovered that Thrawn was developing a new starfighter. Ezra and Kanan credited Kallus with helping them escape the factory. While Hera and Sabine remained skeptical about trusting Kallus, Zeb vouched for his former adversary, suggesting that he might have accidentally recruited him.

Later, Thrawn questioned Kallus about his encounter with the rebels. Having analyzed the rebels' escape pattern, Thrawn suspected that they had inside assistance from a mole. Instead of questioning Imperial personnel, Thrawn decided to set a trap for the mole. Feigning loyalty to the Empire, Kallus commended Thrawn for his "flawless" strategy.

Agent Kallus was later informed of Grand Admiral Thrawn's plan to deploy E-XD-series infiltrator droids across the Outer Rim Territories to locate rebel bases. While stationed aboard a Star Destroyer, Kallus was notified by another officer that they had lost contact with EXD-9. Unable to determine the droid's location, the officer suggested alerting Imperial High Command. Kallus advised against it, arguing that chasing down every comm failure would be a waste of time. Instead, he suggested waiting until the next cycle.

Using his Fulcrum persona, Kallus sent a recorded transmission to Chopper Base, warning the rebels that the Empire was deploying E-XD infiltrator droids across the galaxy. He also added that the Empire had lost contact with one and would soon be searching for it. Fulcrum's warning alerted Kallus' rebel friend Zeb, who realized that the "stray" protocol droid he had found was an infiltrator droid. Collaborating with Chopper and the RA-7 protocol droid AP-5, Zeb overpowered the infiltrator droid. The three rebels then reprogrammed EXD-9 into an improvised bomb, which they used to destroy a Star Destroyer.

Kallus was on the bridge of another Star Destroyer when he witnessed the other ship explode. Feigning shock and anger, he inquired about what had occurred. An officer informed him that one of their infiltrator droid's proton warheads had detonated prematurely. Kallus secretly smiled and later sent a transmission to Chopper Base, praising the rebels for their ingenious plan to neutralize the infiltrator droid. Later, he visited Thrawn and reported that the rebels had reprogrammed an infiltrator droid into an improvised bomb. Both men acknowledged the rebel plan as ingenious. When Kallus noticed that Thrawn was in good spirits despite the setback, the Grand Admiral replied that he had narrowed down his search from thousands of systems to the 94 systems to which he had sent infiltrator droids.

Sometime later, Kallus was awakened from his sleep when Lieutenant Lyste initiated battle-station mode to intercept a stolen shuttle. Upon arriving on the light cruiser's bridge, Kallus was briefed by Lyste about the shuttle heist. After Lyste's light cruiser trapped the stolen shuttle with its tractor beam projector, Kallus proceeded to the landing bay to interrogate the shuttle thief, who turned out to be the rebel Ezra Bridger. Bridger was disguised as a bounty hunter and accompanied by Chopper and AP-5, who claimed to be unwilling passengers on the stolen shuttle.

Kallus met with Ezra in the light cruiser's detention cell and scolded him for getting captured. Ezra informed him that the Empire was monitoring his most recent Fulcrum Transmission and that he had come to extract him before he was exposed and executed for treason. Before they could proceed with their plan, Lieutenant Lyste entered the brig to inform Kallus that Grand Admiral Thrawn had summoned both of them for a meeting aboard his Imperial Star Destroyer Chimaera. To protect Ezra, Kallus claimed that the prisoner was a bounty hunter from Lothal. Seeking to gain favor with Thrawn and redeem himself after the incident with Princess Leia Organa, Lyste arranged for Ezra to be brought aboard Thrawn's ship. Kallus and Lyste then traveled to the Chimaera aboard the Sentinel-class landing craft Shuttle TYA77.

Once aboard the Chimaera, Kallus and Lyste made their way to Thrawn's Office. Meanwhile, the droids searched for a port to download a new set of clearance codes for the rescue team members Kanan and Rex. Ezra was confined to the Chimaera's detention block. At Thrawn's Office, Kallus and Lyste were greeted by Thrawn, Konstantine, and Kallus' former ISB instructor and the Head of the Imperial Security Bureau, Colonel Wullf Yularen. During the meeting, Kallus learned about Thrawn's investigation into Fulcrum and how he was close to discovering the Phoenix Squadron's base on the planet Atollon. Following the meeting, Kallus spent time with his former instructor and used the opportunity to spread disinformation.

Realizing that Thrawn was close to uncovering his identity and believing that he could better serve the Rebel Network by remaining undercover, Kallus decided to implicate Lyste as Fulcrum. Exploiting Lyste's inexperience and naivete, he tricked Lyste into believing that Governor Pryce was Fulcrum and instructed him to spy on her. Kallus also stole Lyste's code cylinder. After locating AP-5 and Chopper, Kallus freed Ezra from his cell and informed him about Thrawn's search for the rebel base. Kallus attempted to persuade Ezra to reveal the location of the rebel base so that he could delete it from Thrawn's database. Not fully trusting Kallus, Ezra insisted that Kallus wait until they had extracted him from the Chimaera. AP-5 then convinced Ezra to support Kallus' plan by pointing out that he could obtain a new set of clearance codes from Thrawn's office.

After deceiving Lyste into tailing Pryce, Kallus acquired an Imperial uniform for Ezra. The two then infiltrated Thrawn's office, with Ezra using a Jedi mind trick to convince the stormtrooper sentry that he was Lieutenant Lyste. Once inside, Kallus instructed Chopper to delete Atollon and add another planet. Before they could leave, Thrawn returned to his office. Kallus and his rebel allies managed to conceal themselves in the dark corners of the office. To distract Thrawn, Kallus then reprogrammed the Grand Admiral's DT-series sentry droids to attack Thrawn, thereby implicating Lyste.

Kallus and his rebel companions then returned to the Chimaera's hangar bay to rendezvous with Kanan and Rex's shuttle. However, Thrawn had discovered the rebel infiltrators and had dispatched Governor Pryce and Colonel Yularen with stormtroopers to apprehend the intruders. Believing that Pryce was Fulcrum, Lieutenant Lyste stunned her. Kallus then tackled Lyste and knocked him to the ground. At that point, Kallus changed his mind and informed his rebel friends that he would remain behind in order to continue providing them with intelligence, as Lyste had made himself appear to be Fulcrum by stunning the governor. When Yularen finally arrived, Kallus publicly accused Lyste of being Fulcrum, knowing that this would likely result in the Imperial officer's execution following his arrest.

Lyste attempted to protest his innocence, but Kallus remained impassive. Later, Kallus attended a meeting with Pryce, Yularen, and Thrawn. Yularen claimed that Lyste's cylinder code implicated him as Fulcrum. Pryce accepted Kallus' explanation, while the ISB agent apologized to Thrawn for failing to prevent Lyste's purported assassination attempt. Thrawn publicly commended Kallus for his service and dismissed him and Pryce. In private, however, Thrawn informed Yularen that Kallus was the real Fulcrum. Instead of arresting him, Thrawn decided to use Kallus to lead them to the rebel base.

Following Lyste's capture, Kallus utilized a reconfigured mouse droid to secretly listen in on a discussion involving Grand Admiral Thrawn, Grand Moff Tarkin, Governor Pryce, and Admiral Konstantine. While secretly monitoring their dialogue, Kallus discovered that Thrawn possessed knowledge of the Phoenix Squadron and General Jan Dodonna's Massassi Group's planned assault on the TIE Defender factories situated on Lothal. Kallus then made his way back to Ezra's previous residence and made an attempt to alert the rebels about Thrawn's awareness of their scheme. However, he realized that his transmitter's signal was being disrupted, and Kallus was only able to transmit a portion of his intended communication.

The phrase "by the light of Lothal's moons" caused Kallus to be startled, and he then noticed Thrawn standing directly behind him, who was already aware that he was the informant ever since Lyste's detention. Kallus tried to engage Thrawn in combat, but he was no match and was taken prisoner by Thrawn's Death troopers. Thrawn then exploited the flight paths of General Dodonna's fleet and Kallus' Fulcrum transmissions to pinpoint the location of Chopper Base on the planet Atollon. When Kallus asserted that no planet existed at that location, Thrawn criticized Kallus for what he claimed was his lack of appreciation for art. He clarified that while the Atollon system was absent from Imperial maps, it was depicted in the art of the sector's ancient inhabitants.

Later, Kallus was escorted to the bridge of the Chimaera and forced to observe the battle as a prisoner, with Thrawn and Governor Pryce present. After Thrawn instructed Admiral Konstantine to maintain his Interdictor vessel in formation with the fleet, Kallus taunted Thrawn for pursuing personal recognition. However, the Grand Admiral countered by stating that his sole focus was achieving positive outcomes for his Emperor. Subsequently, Kallus and his captors witnessed Commander Jun Sato's flagship, the Phoenix Nest, collide with Konstantine's interdictor cruiser, resulting in the destruction of both vessels. Earlier, Konstantine had disregarded Thrawn's directives to remain in the center of the formation and had attempted to secure personal glory by intercepting Commander Sato's ship.

Before Thrawn departed for the ground invasion, Kallus sarcastically cautioned him that he had previously been in Thrawn's situation and had been defeated by the rebels. However, the Grand Admiral retorted that he was different. Thrawn's forces successfully stormed Chopper Base, but the Grand Admiral was prevented from achieving total victory when a mysterious Force entity known as Bendu launched an attack and devastated the base, thus affording the rebels an opportunity to flee. Kallus remained on the bridge of the Chimaera when Ezra and Sabine's Clan Wren reinforcements initiated a rear assault on the Seventh Fleet's last remaining interdictor cruiser.

After the rebels succeeded in destroying the final interdictor cruiser, Kallus smirked and informed Pryce that she had "made a mess of Thrawn's fleet." Incensed, Pryce commanded two stormtroopers to eject him from the ship through an airlock. Due to his ISB combat training, Kallus easily overcame his captors and proceeded to an escape pod, which he used to leave the Star Destroyer. After contacting Hera, he was rescued by the Ghost. Once aboard, Kallus expressed his gratitude to Jarrus for taking him in, and Jarrus, in turn, thanked him for risking everything on behalf of the Rebellion.

At a later time, Kallus formally became a member of the Rebel Alliance and held the rank of captain in the Alliance Army. Kallus served within the Alliance's Massassi Group and collaborated with the Spectres. Following the return of Hera's squadron of Y-wings to Yavin 4 after a mission, Kallus interrupted the Spectres' reunion to inform them that the rebel leader Mon Mothma had requested a meeting with them. During the meeting, the rebels deliberated on information concerning the Empire's new relay station on Jalindi, which had been provided by the Partisans' leader, Saw Gerrera. Kallus voiced his disapproval of Saw's methods for obtaining information but persuaded the Alliance leadership to approve a mission to install a spike on the Jalindi relay.

Subsequently, Kallus and Rex operated the VCX-100 light freighter Ghost while the Spectres carried out a mission to Lothal with the intention of stealing a TIE/D Defender. The rebels' strategy involved meeting with the smuggler Cikatro Vizago's ship, the Broken Horn, to infiltrate Lothal. Kallus cautioned that Vizago was not trustworthy, but Ezra disagreed. Before the Spectres departed, Hera placed Rex in command of the Ghost. Kallus initially believed that Hera was referring to him and pointed out that he had previously commanded Star Destroyers. Rex corrected him, and the former Imperial relinquished the pilot's seat to Rex.

Following the Spectres' mission to the Lothal Jedi Temple, Kallus accompanied Hera and Rex aboard the Ghost to the planet Seelos, which was the location of Rex's fellow Clone veterans Gregor and Wolffe at Joopa Base. At Gregor and Wolffe's modified AT-AT walker, known as "Joopa Base," the rebels also encountered the Weequay pirate Hondo Ohnaka, his Ugnaught companion Melch, and the Mandalorian bounty hunter Ketsu Onyo, who were former friends of Ezra. After providing them with a briefing, these allies consented to assist Ezra in liberating his homeworld of Lothal.

During their journey back to Lothal, the rebels and their allies waited aboard the Ghost in hyperspace to attach themselves to an Imperial container transport at Hondo's suggestion. Despite the skepticism of Kallus and Rex, Hondo's plan proved successful, and the rebels were able to infiltrate Lothal by attaching themselves to a container transport. Upon landing, Kallus, along with Rex, Gregor, and Wolffe, aided Ezra and Ryder's forces in defeating Governor Pryce's forces at the Lothal cliff dwelling. The rebels also succeeded in capturing Pryce, who was crucial to Ezra's liberation plan.

Before the assault on the Dome, the center of Imperial power on Lothal, Kallus and Ryder escorted the captive Pryce. When Pryce denounced Kallus as a traitor, he responded that the day he betrayed the Empire was the day he ceased betraying himself. With the assistance of the White Loth-wolf, Ezra managed to compel an unwilling Pryce to assist them in gaining entry to the Dome.

The rebels subsequently traveled to the Dome in two patrol transports. For the mission, Kallus impersonated an Imperial Navy Trooper and closely monitored Pryce, who followed all of the rebels' instructions, and would be able to tell if Pryce gave them the wrong codes. Thanks to Pryce's cooperation, the rebels successfully fought their way into the Dome and seized the command center. Working alongside Ezra and Ryder, Kallus assisted in issuing a false Protocol 13 to order the recall of the entire Imperial garrison on Lothal to the Dome.

Although their plan was successful, they were unable to launch the Dome into space due to the return of Grand Admiral Thrawn aboard the Chimaera. Thrawn had his assassin, Rukh, disable the power terminals powering the Dome's deflector shield generator, which allowed him to bombard Capital City. After Ezra departed to confront Thrawn, Kallus participated in a two-pronged attack to reactivate the generators. He, Zeb, and Gregor formed Team B, which was assigned the task of reactivating the southern power terminal.

Despite facing strong resistance, Kallus and his team managed to reach the southern power terminal. There, they were ambushed by Rukh and several Death troopers. While Zeb engaged Rukh in combat, Kallus and Gregor confronted the Death troopers. During the struggle, Gregor sustained a fatal gunshot wound to the chest. Kallus attended to the wounded Clone trooper, who instructed him to restore the shields. Following Zeb's instructions, Kallus activated the power terminal, and the resulting surge eliminated the trapped Rukh.

Following this, Ezra instructed the young rebel Mart Mattin to summon a pod of purrgil. The purrgil destroyed the Imperial blockade and latched onto the Chimaera, causing the ship, Thrawn, its crew, and Ezra to vanish into hyperspace. With Thrawn's elimination, the rebels accomplished their objective of launching and destroying the Imperial dome. Kallus escaped with his fellow rebels aboard the Ghost before the "Dome" exploded.

As the Ghost flew over the cheering crowds, Kallus observed that the people of Lothal were now fully supportive of the rebellion. General Syndulla responded that if the Empire desired a conflict, the rebels would be prepared. Despite the rebels' concerns, the Empire never returned to Lothal.

After the Liberation of Lothal, Kallus continued to use the Fulcrum identity. On one mission for the Alliance he was directed to establish contact with the grand-engineer known as Lony Coleema. Alongside his companion droid Dee-Four, the two encountered Coleema on the asteroid outpost Z-LOQ. Following a brief exchange, Coleema successfully transferred crucial information into the droid. Before departing, Kallus provided her with a subspace transponder in case she needed to request assistance from the Alliance. Shortly thereafter, Coleema was abducted by the bounty hunter IG-88 and transported to a planet. Coleema encountered and activated a droid named Are Zero Are Zero "Roro" who then activated the transponder, alerting Kallus to her situation. Utilizing the ship Glimmer of Hope, he and Dee-Four rescued Coleema and Roro from the planet. Coleema subsequently awoke on the ship and, after being briefed by Kallus, expressed her desire to return home.

Following the Galactic Civil War, Zeb escorted Kallus to the planet Lira San, revealing to the former ISB agent that the Lasat species had not only survived the Empire's wrath but were flourishing. The Lasat people, having forgiven Kallus, welcomed him as one of their own. Kallus retired to Lira San.

Kallus would later author a memoir, in which he reflected on his role in the war, from Imperial agent to Rebel defector, titled Honor Lost on Lasan: Serving the Empire, Fighting for the Alliance. Within it, he detailed his realization of the Empire's evils. Some planets would incorporate his text into their education programs to educate future generations about the war. Historian Beaumont Kin, after the Battle of Exegol, would cite the impact of Kallus' memoirs in his own history book The Rise and Fall of the Galactic Empire.

As an Agent within the Imperial Security Bureau, he maintained a strong conviction in the Imperial cause, and his commitment to the Empire was unwavering. Kallus also appeared to possess a degree of personal loyalty to the Emperor's Fist, Darth Vader, carrying out his directives with an enthusiasm not evident in his subordination to other leaders, and appearing somewhat displeased at not being entrusted with his superior's discussions with the Emperor. Kallus harbored a deep aversion to disorder and rebellious activities, dedicating his life to ensuring stability within the Empire. He held a sense of superiority over others, which amplified his disdain for lawlessness in the Outer Rim Territories. Through his position as an ISB Agent, Kallus aspired to achieve greater prominence within the Empire. Whenever he managed to defeat rebel insurgents, he regarded it as a triumph for the Empire, a triumph that could potentially lead to greater opportunities. Nonetheless, he had declined multiple offers for promotion to remain on the front lines with the Imperial Security Bureau and once stated that his duty was to serve the Empire, not his personal ambitions.

A proficient fighter, Kallus did not command soldiers from a distance but instead fought alongside them on the front lines, including against the crew of the Ghost. Kallus demonstrated an eagerness to engage Orrelios in bo-rifle combat on Lothal and appeared to take pride in his role in the destruction of the Lasat species, although his actual involvement in it would later prove to be less than he boasted. Kallus viewed his actions as necessary to fulfill his responsibilities and ensure stability and efficiency within the Empire. While he valued honor, Kallus demonstrated his ruthlessness by once pushing one of his men into a chasm to his death for posing an innocent question. When serving under Vader's direct command, Kallus displayed a twisted enthusiasm in carrying out his superior's instructions, such as assisting in luring Maketh Tua to her demise.

Beneath his outward confidence, Kallus was not as cold and cruel as he seemed. He was genuinely disturbed by the sudden and brutal execution of Cumberlayne Aresko and Myles Grint on Governor Tarkin's orders, whom he had considered loyal fellow Imperials. Despite being a seasoned soldier who rarely displayed any vulnerability, he revealed a more sensitive side when forced to cooperate with Zeb to survive, revealing that his tough persona was merely a facade to conceal his feelings of sadness, confusion, and being lost, haunted by his past. His conversations with Zeb revealed that he held a somewhat idealized view of the Empire, firmly believing that Zeb would receive a fair trial if he surrendered and cooperated. Kallus was also able to repay his debt to Zeb by allowing his friend Sabine Wren and two defecting pilots to escape.

Kallus also appeared to deliberately remain ignorant of at least some of the Empire's atrocities, stating that he "never asked questions" regarding the missing population of Geonosis and arguing against the notion that the Empire was responsible. He revealed that he kept his bo-rifle not as a trophy but out of respect for the Lasat he had defeated, who presented him with the weapon as a gift for defeating him in accordance with Lasat tradition. He developed a respect for Zeb and apologized for his role in the Imperial pacification of Lasan, claiming that he had not intended it to be a massacre. In light of the unique bond he formed with his enemy, he was saddened by the cold and indifferent reception he received from his own comrades upon his return. His loyalty was further tested when one of Grand Admiral Thrawn's campaigns resulted in a high number of civilian casualties, which prompted him to express his concerns to the Grand Admiral.

Kallus' growing disillusionment with the Empire and his friendship with Zeb subsequently led him to secretly assist Sabine in her operation to extract defecting Imperial cadets Wedge and Hobbie from the Skystrike academy. He provided Sabine Wren and the cadets with instructions on which levels to avoid and informed Wren that he and Zeb were now even. Kallus' advice proved genuine, and Sabine and the cadets were able to escape. Similar to Minister Maketh Tua, Kallus' growing dissatisfaction with the Empire's brutal methods led him to begin aiding the rebels. Kallus' sympathy for the rebellion prompted him to leak information about Thrawn's secret TIE fighter program to the Phoenix Squadron. He also assisted Bridger and Jarrus in escaping from the Lothal Imperial factory. Kallus was visibly horrified by Thrawn's ruthless efforts to eliminate saboteurs at the factory, particularly the simulation "accident" that resulted in the death of the worker Morad Sumar.

Kallus' pro-rebel sympathies led him to leak information about Grand Admiral Thrawn's E-XD infiltrator droids to the rebellion. This information enabled the rebels Zeb, Chopper, and AP-5 to neutralize the threat. Kallus was impressed to learn that the rebels reprogrammed the infiltrator droid into an improvised bomb which destroyed an Imperial Star Destroyer.

Kallus's dealings with the rebellion led him to trust Ezra, Chopper, and AP-5 when they came to rescue him from Thrawn's crackdown. Kallus also manipulated Lieutenant Lyste's trust to trick him into spying on Govenor Pryce and frame him as Fulcrum. Kallus' new-found sympathy for the rebellion made him willing to harm his fellow Imperial comrades in order to advance the rebels' interests and to protect his identity as Fulcrum. Kallus also had a respectful relationship with his former ISB instructor Colonel Wullf Yularen. Kallus took advantage of Yularen's respect for him to mislead the Colonel into believing that Lyste was Fulcrum. However, Thrawn deduced that Kallus was the real Fulcrum after learning that Kallus had withheld information about the identity of the rebel operative Ezra Bridger.

Kallus' new-found loyalty to the rebels led him to attempt to warn them that Thrawn had learned about their planned attack on Lothal. After Kallus put up a fierce but futile fight against Thrawn, the Grand Admiral remarked that he had the heart of a rebel, which Kallus took as a compliment. During the Battle of Atollon, Kallus watched the attack on the Rebel base in anger and despair, but he took the occasional opportunity to taunt his former Imperial comrades. Governor Pryce grew impatient with Kallus' taunts and ordered her stormtroopers to throw him out the airlock. However, Kallus was then able to overpower his guards and escape in an escape pod to join the rebels. When Kallus expressed gratitude to his former rebel foes for taking him in, Jarrus praised him for risking everything to help the rebellion.

As a rebel, Kallus shared Mon Mothma's revulsion towards the Partisan leader Saw Gerrara's brutal methods. Kallus also believed that the smuggler Cikatro Vizago was untrustworthy and cautioned his rebel comrades against trusting Vizago.

Kallus fought alongside Ezra and his former rebel foes during the Liberation of Lothal. When confronted by Governor Pryce over his defection, Kallus responded that he stopped betraying himself the day he betrayed her Empire. Having befriended Zeb, Kallus traveled with Zeb following the Galactic Civil War to Lira San where he reconciled with the Lasat people he had formerly persecuted.

Kallus received training in both riot control and heavy combat, and he wore an ISB helmet designed for such situations. He underwent extensive training to become proficient in fighting and was a dangerous foe in hand-to-hand combat. During the fall of Lasan, Kallus bested a Lasat guardsman, who gave Kallus a bo-rifle as an acknowledgement of his defeat. He was able to successfully modify this weapon for close-quarters fighting and was able to go toe-to-toe with Orrelios, a trained Honor Guardsman, during a fight on Lothal. While Kallus received training in unarmed combat from his time at the Imperial Academy, he was outmatched by Grand Admiral Thrawn in combat. Later, Kallus used his close-quarters combat skills to overpower two stormtroopers and escape the Chimaera aboard an escape pod.

As a high-ranking Imperial officer and ISB operative, Kallus was familiar with code cylinders and how Imperial institutions worked. He used his inside knowledge of the Imperial Military to leak vital intelligence to the rebellion and tried to mislead Thrawn. He was also highly skilled as with robotics and programming, as evidenced, for instance, by his reprogramming and redesign of an MSE-series-6 ("mouse") droid for surveillance, and his reprogramming of Grand Admiral Thrawn's own assassin droids.

After defecting to the Rebellion, Kallus put his combat skills to good use fighting alongside his rebel comrades. He also used his knowledge of Imperial protocol and procedure to infiltrate the Dome and initiate Protocol 13.

Agent Kallus was seen wearing a gray Imperial uniform coupled with black boots, gauntlet gloves covering his hands, and a fleximetal cuirass. The armor's durability was noteworthy, capable of withstanding a ricochet from an E-11 medium blaster rifle. His signature ISB combat helmet was equipped with blast-proof cheek pieces. An identity disk was affixed to his belt. The metallic rank insignia positioned on the left breast of his armor consisted of a row of four tiles, with two blue, one silver, and one red. Subsequently, his rank insignia evolved to comprise five tiles, with three blue and two yellow. During his tenure as a Commander, Kallus possessed at least one red-tipped code cylinder. Kallus also carried a RK-3 blaster.

In combat, Kallus employed a J-19 bo-rifle acquired from a member of the Lasan High Honor Guard whom he had defeated, demonstrating proficiency in both ranged and close-quarters engagements. As a Fulcrum operative, Kallus possessed the expertise to operate a transmitter, which he kept in Ezra's former residence. Following his integration into the Rebel Alliance, Kallus donned an earth-toned Alliance uniform, bearing the rank of Captain.

Agent Kallus serves as one of the main adversaries featured in the animated television series Star Wars Rebels, where British actor David Oyelowo provides his voice. Kallus was conceptualized as a rebel hunter and the most consistent antagonist for the rebel crew, positioned on the front lines of conflicts between the rebels and the Empire. Kallus underwent several design iterations, including one portraying him as a Chiss, a species originating from the Star Wars Legends novel Heir to the Empire authored by Timothy Zahn. The production team ultimately decided on a human character, and Oyelowo was selected to portray the role. Carrie Beck, the show's co-creator, noted that Oyelowo was capable of delivering "a voice that is very authoritative, and very commanding, and very cool without betraying any sense of insecurity or weakness."

The character was initially unveiled at the 2014 Hasbro Toy Fair. He made appearances in numerous trailers, including the full trailer released on May 4, 2014, before becoming the focal point of his own introductory video. He debuted on-screen in Star Wars Rebels: Spark of Rebellion, the show's premiere television movie that premiered on October 3, 2014. Several chapters within the chapter book Battle to the End, which was written as a companion to Star Wars Rebels, are presented from Kallus' perspective.

Initially known only as Kallus, Star Wars Rebels creator Dave Filoni revealed his first name, Alexsandr, in a July 2017 podcast interview on the Star Wars fan site, The Wookiee Gunner. Leland Chee of the Lucasfilm Story Group confirmed the spelling and canonicity of the name via his Twitter account. Following the October 23, 2017 airing of "In the Name of the Rebellion," the character's first appearance after defecting from the Empire, it was officially published for the first time when his StarWars.com Databank entry was retitled from "Agent Kallus" to "Alexsandr Kallus." Filoni stated in the interview that first names are uncommon for villains because of a lack of personal connection, but as Kallus evolved into a better person, a first name enhanced his character. He was named Alexsandr in honor of Alex Spotswood, a Star Wars Rebels crew member who consistently voiced Kallus in the "temp recordings" of the script during the show's production from the first season onward.

The Official Star Wars Fact File Part 86 stated Kallus was born around 35 BBY and was a teenager during the Clone Wars, indicating a younger age. However, Star Wars Rebels: The Visual Guide indicated Kallus was in his late 30s upon arriving at Lothal, suggesting a birth year between 44 BBY and 42 BBY.

The Star Wars Rebels Facebook page once asserted that Kallus kept his bo-rifle as a trophy from Lasan. Conversely, the Rebels episode "The Honorable Ones" showed that Kallus did not view the weapon as a trophy, having received it as a gift from a Lasat guardsman. This article prioritizes the events of "The Honorable Ones" and considers the Facebook post outdated.

Kallus, as Agent Kallus, makes an appearance in Angry Birds Star Wars II, both in cutscenes and as a playable character. When he is selected in gameplay, he has the ability to summon 8 stormtroopers, similarly to the power of Wicket and The Ewoks.