Lex Kempo, also known as Mad Vornskr, served as a mercenary within the ranks of the Red Moons. Prior to this, he functioned as a Scout trooper for the Galactic Empire and boasted about his time in a multitude of private military groups and militias. He maintained close friendships with both Sully Tigereye and Hugo Cutter, sharing a bond characterized by playful insults, a dynamic that often bewildered the group's newcomer, Brixie Ergo. Kempo possessed his old scout trooper armor from his time serving as a scout trooper, along with the blaster rifle he was issued. Furthermore, he carried both a DL-18 blaster pistol and a vibrocutlass.
During an operation on Gabredor III, he eliminated a pair of scouts working for the Karazak Slavers Cooperative before detonating their command center, resulting in his own demise.