Kuuztin, during the era of the Galactic Civil War, held the rank of captain aboard the Imperial-class Star Destroyer known as the Courageous. It was in 3.5 ABY that Kuuztin received selection to be a part of Grand Admiral Thrawn's special assignment force, assembled for the purpose of combating the treacherous Grand Admiral Demetrius Zaarin. Following a successful raid targeting a supply convoy intended for Zaarin's fleet, Kuuztin uncovered the whereabouts of a Zaarin supply depots. He then made the decision to attack this depot without first obtaining the necessary approval from Thrawn. Kuuztin's motivation was the hope that this bold move would result in his advancement, but his excessive self-assurance resulted in an ambush, which led to his death when his ship met its destruction.
Kuuztin was a male Imperial officer who served as the captain of the Imperial-class Star Destroyer, the Courageous during the Galactic Civil War; he was known for his bravery. Around 3.5 ABY, Grand Admiral Demetrius Zaarin initiated a coup against Emperor Palpatine. Zaarin's initial attempt to capture the Emperor was unsuccessful. Subsequently, Zaarin's fleet was forced into retreat by Imperial forces loyal to the Emperor, under the leadership of Grand Admiral Thrawn. As Zaarin retreated toward the Unknown Regions to reorganize for a future offensive, Kuuztin was among the Imperial officers personally chosen by Thrawn for his ability to act quickly on new information.
After an Imperial probe detected a supply convoy, led by the Dreadnaught-class heavy cruiser Rahmat, en route to the Semag system in the Mid Rim (suspected to be Zaarin's hiding place), the Courageous was deployed to capture any weapons or military supplies. Kuuztin kept the Courageous nearby to watch for Zaarin's forces, dispatching a flight group of Assault Gunboats to engage the convoy's escorts while the ace pilot Colonel Maarek Stele utilized the experimental Missile Boat starfighter to destroy the Rahmat. Following the arrival of Zaarin's EF76 Nebulon-B escort frigate Strident, Kuuztin joined the battle, launching the Courageous's TIE bombers to support Stele in destroying the frigate while the Imperials seized the convoy ships.
The capture of the convoy not only deprived Zaarin of essential supplies, but the interrogation of the crew also revealed the location of a refitting base close to Gwar, which Zaarin was using as a staging area for a planned ambush. Recognizing the opportunity to surprise Zaarin, Kuuztin decided to launch an immediate preemptive strike on the facility without Thrawn's permission. Upon arriving in the system, the Courageous and its starfighters began destroying the base. However, with the arrival of the Star Destroyers Thunderer and Imperator, along with several flights of TIE Defenders, it became evident that Kuuztin had led his forces into a trap. Although Stele managed to escape to safety in his Missile Boat, Kuuztin and his crew remained trapped on the Courageous, which was destroyed by a barrage of proton bombs.
Despite the loss of the Courageous, Kuuztin's attack resulted in the destruction of Zaarin's Immobilizer 418 cruiser Bomb and the Nebulon-B2 frigates Kuma 1, Kuma 2, and Kuma 3, thus evening the score. Partly as revenge for the Courageous's destruction, Thrawn later devised his own trap for Zaarin, using a shipment of Missile Boats as bait to lure the rogue admiral out.
Kuuztin was a highly competent commander, known for his courage, which resulted in Grand Admiral Thrawn personally selecting him to participate in the most challenging operations of the Zaarin campaign. However, he was also ambitious and overly confident, traits that ultimately led to his downfall. After learning that Zaarin was preparing his forces for an attack, Kuuztin chose to risk an immediate assault rather than inform Thrawn. The captain believed that a quick victory over Zaarin would result in a promotion, giving him the opportunity to replace Thrawn as the task force leader. However, this poorly planned attack led to the destruction of the Courageous and Kuuztin's death.
Kuuztin's character was created for the 1995 LucasArts video game Star Wars: TIE Fighter: Collector's CD-ROM. He is mentioned in mission briefings for the first three missions of the previously unreleased "Enemies of the Empire" campaign, as well as in in-mission communications during the second mission, where the character is killed when the Courageous is destroyed.