well, other than the fact that he's a huge piece of shit and probably a terrible actor... but on a purely physical level? I've never seen a person who looked more like the comic book Joker in my entire life
(I don't actually want this to happen I'm just saying)
That panel gets posted every once in a while. Unfortunately, I remember it being more cringe "I may be a criminal psychopath, but I am an American too!"