TK-622, also known as 622, was a sergeant in the Galactic Empire's Stormtrooper Corps during the Galactic Civil War. He participated in military campaigns on both Malastare and Ralltiir, before being transferred to the first Death Star in 0 BBY. A staunch believer in the Empire, 622 was utterly convinced he was on the morally superior side of the war. After his commanding officer and friend Commander Akobi was assassinated by a sabotaged Viper probe droid aboard the Death Star, TK-622 set out to track down the culprit. He enlisted the help of Krono Relt, a droid technician, but despite this his investigation was largely fruitless. As the Battle of Yavin raged outside the Death Star, Relt revealed himself to be Akobi's killer, and admitted to being an undercover Rebel operative. In the viol