Boss, better known as RC-1138 or Delta 38, was the leader of Delta Squad. Scorch was his demolitions expert, and was good at using anti-armor, Sev was his sharpshooter, and Fixer, his slicer man. Boss was born on Kamino, and was taken care of by Taun We.
He wears Katarn-class commando armor, very resistent yet lightweight gear that was tougher than normal clone trooper armor. Also like other commandos, he uses the DC-17m Interchangeable weapon system, a weapon system that can turn a blaster into a sniper or a grenade launcher. In his small arsenal, he has a DC-15s sidearm, a handgun with infinite ammo, and a knuckle plated vibroblade, a short and retractable blade hidden inside his knuckle armor.