Malleus has pale skin, glowing green eyes, and a pair of large black horns that protrude from his long, dark hair. His nails are black. His dorm outfit consists of an asymmetrical and ornate black uniform jacket with lime green accents over jodhpur pants of the same coloring, embossed leather gloves that reach his elbows, a small pillbox hat, and heeled black leather boots. A holster-style leather belt holds spools of thread at his waist.