Yeah, why mention his appearance at all? It's crass and his actions should speak for themselves. Someone can be born with "villainesque" features and live a noble life, it's unfair to disadvantage them by perpetuating negative stereotypes.
Those stereotypes have a basis in reality; the way people think and behave etches itself on their faces. I don't think anyone with real life experience could seriously, honestly argue that it's not possible to discern any information about someone from their face/facial expressions and how they carry themselves.
