Claude has short, irregularly cut hair with bangs framing the right side of his face, golden eyes, and wearing glasses. As the butler that he is, Claude elegantly wears a white shirt over a tuxedo with a dark ribbon. Having a contract with Alois, Claude has a mark on the back of his left hand with the symbol of an inverted pentagram, composed of dark green colors, with small parallel lines coming out of the five joints on the sides. He is also able to changing the color of his eyes 