Hewex was an Imperial Navy Major. He was the leader of the Navy detachment assigned to guard the deflector shield bunker on Endor, a liaison between technicians and command staff. Initially, when the Rebels broke through the blast doors of the bunker, Hewex was captured and forced to move out of way at gunpoint. When the Rebels became overrun, Hewex stole Chewbacca's Bowcaster. Fooled by Han Solo (posing as an AT-ST pilot), Hewex ordered three squads to help search for the Rebels. Solo and his team then infiltrated the bunker and destroyed it. It is unknown what happened to Hewex.