William is a pale, thin young man with blond hair of medium length with prominent side bangs. One of his most striking features are his scarlet eyes. He's stated to have a beautiful face and look like an elegant gentleman. In the post time skip, he now wears a black suit, and wears an eye patch over his left eye because it was damaged during his fall...and lost its scarlet color. Now he hopes to atone for his crimes and make things right.