Another one for the thread - Robert Davi.
And his twin in skin, Michael Ironside.
Robert Davi --not only plays the bad guy but he plays good guys as well —He is one of the best out there and I find me even liking something about the bad guys he plays - he humanises them in such a way that they have a ton of texture — very interesting quality in his performing --and sexy
davi rocks
I haven’t seen a lot of his movies, but I seem to remember Tim Roth being a dick in a few roles, most notably in Rob Roy.
Chelcie Ross makes me want to slug him. I mean, he almost didn’t let Rudy into the game. not to mention many other roles he was an ass as.
How about David Patrick Kelly? I haven’t seen all of the movies listed there, but in the ones I have seen, he was a bastard.
Tim Roth’s character in that movie made me physically ill when I watched it. I can’t bring myself to watch it again solely because of him. Which, I suppose, is the mark of a great actor - I like him in everything I’ve ever seen him in.
James Woods.
He is a bit of a prick in real life too.
I know he is a good, maybe great, actor, but he is not too far away from the pricks he usually portrays.
My husband has known him for years.
Shark? More than you know.
He delayed $$$$$ production (made everyone wait for hours) while he played online poker.
I saw that show a while back, with Jeff Daniels in that role. Funny, although you’re right, the character is an asshole, he came off as the most likeable of the four of them, at least as played by Daniels (not a guy who usually plays pricks).
Yeah, Jeff Daniels was also there but he’d moved into the Michael role. Dylan started off as the most assholish of the bunch but after a while, his directness and brutal honesty gave him a sort of twisted integrity; but IMO he never really crossed into likability like Daniels did when I saw it with the original cast. Maybe it was the sneer and the fact that he’s not a Hollywood leading man type. I mean, you wanted to punch Dylan in the face on first sight and at the end you still did, but you wanted to punch everybody else too. 
Topic: James B. Sikking is another guy who can play pricks. Here he is in Star Trek III.
Duh. Ever character on that show was a prick. Yes, even Jerry.
I’ve always admired M. Emmet Walsh because he could play a great prick and turn around play a great nice guy in the next movie.