Reybn, a Sergeant, held the position of commanding officer at an Imperial communications outpost located on the world of Vaal.
During his deployment on Vaal, which lasted several months, Reybn and his team became lax in their duties, choosing to spend their time sunbathing rather than completing their required reports. His death occurred not long after the Battle of Yavin, when Darth Vader breached the outpost accompanied by a group of ferocious hyenax, who subsequently tore him and his entire crew apart.