A 14-year-old teenager no more than 5 feet thin or too thin with an appearance similar to that of his father (Jean Pierre Polnareff) at 23. He wears a brown short sweater, dark brown jeans with cutouts on the hips, black armbands and on his left ear you can occasionally see his father's earring in the shape of a half-broken heart. The boy is quite kind, but at the same time cruel to his enemies and traitors. At the time of JoJo's 5th birthday, he is the youngest mafioso.