Trezin was a male Galactic Republic Captain of the Galactic Republic who fought against the resurgent Sith Empire during the Cold War. While on leave at Nar Shaddaa's Club Ufora, he was kidnapped by the Empire and brough to Doctor Charnagus, who planned to take his body apart and graft its parts on a saboteur to take Trezin's place on the fleet. However, the Captain was rescued by the Republic before the Doctor could cause him harm.