Edgar has a distinctly old-fashioned appearance, with dark brown hair, a prominent curled moustache and a short stubble beard. His green eyes sit beneath a classic black flat cap, giving him the appearance of a rather grumpy inventor from another era. He wears a black turtleneck beneath a long gray coat with its sleeves rolled up, paired with dark trousers secured by a brown belt with a silver buckle. His brown shoes match the belt, while his most distinctive feature is his left arm, encased in a mechanical gauntlet of his own design.

- Originally planned to be named 'Edwardo'.