Mello is a young man with chin-length blond hair and blue eyes. His bangs hang down just over his eyebrows, and he stands at about average height. He has a large scar, which begins somewhere between his shoulder and waist and extends up to just between his nose and left eye. Mello is usually seen wearing dark leather clothes. He is fearless in the face of danger and is always willing to take risks to achieve his goals. His attitude is rather aggressive, but can shut up if he needs to.