Trachta was a Human male Imperial Grand Moff over the Imperial Center Oversector who unsuccessfully masterminded the Anti-Sith conspiracy and attempted to kill Emperor Palpatine and Darth Vader during the Galactic Civil War.

Trachta appeared to be a Human male, but was encased with cybernetic implants after being horribly maimed by a thermal detonator during the Clone Wars at the hand of a Jedi Padawan defecting to the Confederacy of Independent Systems. His most distinctive feature was a triangular breath mask that fed into the mechanical lungs required to keep him alive and obscured his pale face. In addition to his cybernetic respiratory system, Trachta's organic eyes were replaced with ocular cameras, and a third ocular camera was installed in the back of his head, allowing him to see behind him.