Cassius has short, fluffy red hair with two points at the front, comparable to demon horns, green eyes, and a red sweater. He wears a gray jacket and boots with red soles and bright yellow upside-down crosses. He also has short red nails. Cassius carries a TEC-9 in his backpack and a small dark gray book on her left with a yellow pentagram on it. He never seems to smile and is constantly scowling. Specifically, Cassius appears to be an aloof, angry goth kid.