Trux Zissu's inauguration as governor of Delantine was planned by the Alliance to Restore the Republic. Aboard the Timespan from Yavin 4, he traveled with his son Stuart Zissu, along with 4B-X, R2-D2, and C-3PO. During their journey, stormtroopers attacked and seized the Timespan. To allow the droids and Stuart to flee in escape pod 4, Trux fatally shot the initial pair of stormtroopers before yielding.
Trux's physique was characterized by a muscular and athletic build, common for a combatant, complemented by his silver hair.