Diavolo is a tall man with a lean and semi-muscular build. He has long hair, leopard-patterned with various spots, parted in a zig-zagging manner; the bangs of which are propped and parted slightly to the side. The rest of his hair is cut straight across at his shoulders. He is the main Villain of Vento Aureo and he has two personalities, his other personality being Doppio (technically two souls sharing the same body).