Corporal Derdram was an officer in the Imperial Navy. He was a member of Imperial Intelligence, Internal Security division. Derdram was responsible for the physical safety of Imperial personnel against Rebel saboteurs. Derdram was stationed on the Executor by 3 ABY, however after the Battle of Hoth Derdram was present on the command bridge of the Avenger when the fugitive Millennium Falcon seemingly disappeared from the Star Destroyer's pursuit.