Proto stands two meters tall, his fagile-looking humanoid body a glistening white plasteel-like material, but of unknown origins. His body is lithe and spartan, with thin cables bundeled at the joints, and protective plating mounted on his rod like arms and legs. His head, a tall, near-cylindrical tower with a cyclops-like blue sensor just below the "forehead", contains no visible speaker grill, the vocalizer hidden behind it.. He carries a blue-bladed lightsaber, with a spare hidden in a chest compartment.