Roc has short blue hair with a large ahoge, red eyes, pointed ears, and raceless white skin. He wears a dark blue police uniform with a black tie, black gloves, and black shoes. He also has two black demon tails. Underneath his gloves are black nails and a mouth on his right palm. He has also been depicted wearing a red shirt and black tie underneath a long black trench coat, shying away from his usual police attire. When in school he wears a black gakuran school uniform.