I like this guy, his name is Youichi Hiruma from Eyeshield 21. I found this pic a while back ago, I think it was in photobucket. I don't know who the original artist is but I am eternally grateful they made this. He has such a presence in the anime and manga, when ever he show's up you could just feel something crazy or violent is about to happen. And I love his wicked sharp-toothed smile.