Sirak, a male Zabrak, underwent training to become a Sith apprentice at the Academy situated on Korriban during the era of the New Sith Wars. He distinguished himself as the leading apprentice for a significant portion of his time at the Academy, earning the favor of numerous Sith Masters, particularly Qordis. Sirak gained recognition at the Academy due to his potent connection to the dark side and his prowess in lightsaber combat. He found a rival in Bane, another apprentice, whom Sirak considered to be among the few students capable of challenging his position at the Academy. After Bane lost the Masters' favor for distancing himself from the dark side, he sought to regain his standing by challenging Sirak. The Zabrak easily defeated his Human adversary and, from that point onward, dismissed Bane as a threat to his dominance.
Some months later, Bane once more challenged Sirak. Sirak was unaware that Bane had secretly received training from Kas'im, the Academy's Blademaster, as well as from Githany, a Sith apprentice and defector from the Jedi Order. Githany imparted to him all the knowledge that the Sith Lords were teaching her, all in preparation for seeking revenge for his earlier defeat. Bane's meticulously honed abilities allowed him to completely control the duel, orchestrating Sirak's downfall. As Bane hesitated to deliver the killing blow, Kas'im intervened, recognizing that Sirak was not only defeated but also humiliated.
Enraged and consumed by a desire for vengeance, Sirak devised plans to eliminate Bane. An opportunity arose when Githany offered to assist Sirak in killing his enemy. Together with the Zabrak twins, Llokay and Yevra, Sirak lay in wait in the library while Githany lured Bane to them. However, Githany had actually betrayed the Zabrak trio and instead fought alongside Bane against them. The former Jedi proceeded to slay the Zabrak twins using her lightwhip, and Bane decapitated Sirak as he pleaded for mercy.
Sirak, who originated from the Zabrak homeworld of Iridonia, served as a Sith apprentice on the planet of Korriban during the concluding years of the New Sith Wars. Owing to his inherent strength in the dark side of the Force, Sirak was admitted into the Sith academy on Korriban, an institution exclusively designated for individuals with the potential to become Dark Lords of the Sith. Throughout his tenure at the Academy, Sirak ascended through the ranks of students to become the leading apprentice, receiving preferential treatment and guidance from several Sith Masters. His command of the dark side was so profound that some apprentices speculated that Sirak had commenced training under the Academy's Headmaster, Qordis, approximately twenty years prior, even before the Korriban Academy was re-established. Some students even whispered that Sirak was the Sith'ari, an embodiment of the dark side itself. He also garnered the admiration of two other Zabraks within the Academy, the twins Yevra and Llokay, and was considered by the other students to be more skilled than his fellow Zabraks. The two apprentices shadowed him constantly, appearing as obedient servants following their master.
Sirak also distinguished himself within the Academy through his use of the double-bladed training saber. While other apprentices also utilized this type of saber, Bane observed that only Sirak wielded it with any real skill, aside from Kas'im, the Twi'lek Blademaster of the Academy.
Following Bane's killing of the Makurth apprentice Fohargh during a training duel, Sirak pursued him until they were alone in a separate corridor of the Academy. The Zabrak found Bane to be intriguing and believed he would be a formidable opponent—one who might eventually challenge him for the position of top student. Sirak attempted to intimidate the Human, informing him that a confrontation between them was inevitable and that he knew Bane would eventually challenge him in the dueling ring when he felt ready.
Bane recognized the challenge as an attempt to provoke him into a duel before he was prepared. However, in killing Fohargh, Bane had realized that he had killed his father many years ago through use of the dark side. Over the course of the next month, Bane began to lose his control of the Force, unable to access his anger. When the Sith Masters began to spurn Bane's approaches for private tutelage after orders from Qordis, headmaster of the Academy, Bane knew his prestige was diminished and had to take measures to re-claim it. Thus, Bane rashly challenged Sirak in an attempt to prove himself.
Sirak had observed the gradual decline in his opponent's skills over the preceding weeks. After Bane killed Fohargh, Sirak believed Bane would become a challenge, but he no longer considered him a threat to his position. Sirak brandished his double-bladed training saber with flourishes before moving in to strike. Bane defended himself, but Sirak continued his attacks, incorporating moves from lightsaber combat Forms V and Form VII in alternating powerful and quick attacks, before demonstrating his true skills, blending several forms at once and overwhelming the weakened Bane. His opponent was crippled and defeated, and Sirak felt him beneath his notice once more.
Shortly after the removal of his latest challenger, Sirak found a new rival to his position—the Jedi defector, Githany. She had recently joined the Brotherhood of Darkness, providing Lord Kaan with information on the Jedi positions which resulted in a Sith victory at the Fourth Battle of Ruusan. Sirak had witnessed her observing him as he did her, both analyzing each other and preparing, knowing they would battle for the position of the Academy's foremost apprentice.
Several months later, Bane sought to challenge Sirak again. Sirak was cautious, knowing Bane would not challenge him again unless he had some strategy for victory. Indeed, Bane had in fact been training in secret with both Kas'im, the Academy's Blademaster, and Githany, learning lightsaber combat and how to use the Force from them respectively. Bane had spent considerable time learning the techniques of the double-bladed saber that Kas'im wielded, seeking to understand it and so nullify its unfamiliar cadence as well as Sirak's advantage in battle.
When the battle began, Bane used all of his cunning, attempting to destroy his enemy entirely. He added false flaws in his technique, luring Sirak into a sense of security, but Sirak was never able to land a blow on the Human. As the battle wore on, Sirak grew weary, unaccustomed as he was to prolonged dueling. Bane often held back from striking when Sirak left himself exposed, sensing his opponent's desperation and using it to fuel his passion for revenge. Sirak's attacks became less honed as he was gradually worn down, and Bane closed in on the total domination he sought. In the final stretch of the duel, Bane crippled Sirak with a lightning-fast strike that shattered his forearm, and another that split his lower leg in two. As he prepared for the finishing move, Bane paused, allowing Kas'im to intercede on Sirak's behalf and save his life.
After spending several days submerged in bacta, Sirak emerged and began thinking about how he could take his revenge against Bane. Githany came to him, informing him that she helped train Bane to defeat him, and now, in turn, could aid Sirak in defeating Bane. The former Jedi believed Bane was weak after he failed to kill Sirak in the dueling ring, but she was also angry at him for leaving for Korriban's Valley of the Dark Lords without saying goodbye to her, or telling her why he had chosen to go.
While Bane was in the Valley, Kaan contacted the Academy, calling all Sith to Ruusan for the final battle against the Army of Light—an army of Jedi led by Lord Hoth. All the apprentices were granted the title of Dark Lord of the Sith, declared equal members in the Brotherhood, and furnished with their own lightsabers. Shortly after this announcement, Bane returned, which pleased Sirak, who had felt his desire for revenge may have gone unfulfilled. Though he knew Llokay and Yevra would aid him in his revenge, Sirak knew he would need Githany to defeat Bane—her strength in the Force made her a better ally than either of his kin. Githany persuaded Sirak to wait in the library, where she would lure Bane to him. All too aware of Bane's power, Sirak told Githany he would have Llokay and Yevra assist them. Though displeased, she agreed nonetheless.
As promised, Githany lured Bane to the library archives. There, he discovered Sirak, Llokay, and Yevra standing in waiting. Stalling for time, Bane appealed to Githany. When Sirak realized he was trying to turn her against him, he attacked. Githany, siding with Bane, tossed him his lightsaber—which she had taken from his room when they left. Bane ignited the blade via the Force, and summoned it to his hand in defense against Sirak's attack. A duel took place within the library, in which Yevra and Llokay were killed by Githany and Sirak was left facing the two Humans alone. Begging for mercy, Sirak's pleas went unheard as he was decapitated by his nemesis, Bane.
Sirak possessed pale yellow skin and orange eyes. He stood out as the most formidable of the three Zabrak who were studying at the Academy during the conclusion of the New Sith Wars. The other Zabrak, the twins Yevra and Llokay, held Sirak in high esteem and were frequently seen by his side. In contrast, Sirak treated them as assistants, using them to carry items such as his training saber or his cloak while he was dueling.
Due to his superior skills compared to his fellow students, Sirak was also exceedingly arrogant. The preferential treatment he received from the Masters at the Academy, stemming from his strength in the Force, only amplified his feelings of self-importance. He preferred to operate independently and was suspicious of those who offered him assistance, such as Githany. Despite his pride, Sirak was highly cautious and demonstrated wariness rather than overconfidence when he suspected traps, such as during his second training duel with Bane.
Sirak's most notable ability at the Korriban Academy was his proficiency in dueling, particularly in the seventh form of lightsaber combat, which Blademaster Kas'im dubbed "Vaapad" during that era. Wielding the relatively uncommon double-bladed version of the Sith training saber, he was considered to be almost on par with Kas'im. Sirak could integrate Force techniques into his dueling, making him a formidable opponent in battle. However, the Blademaster also believed that Sirak's arrogance hindered his progress.
A skill attributed to all the apprentices of Korriban's academy, Sirak was able to create protective shields with the Force to defend himself from physical, energy, and Force-based attacks. Sirak could anticipate his opponent's moves through the Force as well, another skill of all the apprentices at the Academy. He was able to counter an opponent's use of telekinesis—an ability he was also able to utilize himself. Sirak was among the apprentices that Qordis taught Force lightning, which he attempted unsuccessfully to use against Bane.
Sirak was created by Drew Karpyshyn for the novel Darth Bane: Path of Destruction, which is his sole canonical appearance to date. In the novel, Karpyshyn mistakenly describes Sirak as being a practitioner of Vaapad, a lightsaber form based on Juyo, created millennium later by Jedi Master Mace Windu with the help of fellow Master Sora Bulq. Karpyshyn has acknowledged this error, and requests that readers consider Vaapad to read Juyo instead. It is unclear if the intent later changed, since in Book of Sith: Secrets from the Dark Side the term Vaapad is applied again to the saber style.