1. Cameron Diaz
Even when she isn't horrible (Vanilla Sky, Being John Malkovich, In Her Shoes, she's consistently annoying.
2. Ron Eldard
Can't put me my finger on it, but something about him just bugs me.
3. Vince Vaughn
His "I'm so much cooler than you" vibe is a constant distraction.
4. Gary Oldman
He can be great, but I sometimes get the feeling he thinks he's as great as we do, and i find some of his expressions a bit irritating. His only flat out terrible performance is in True Romance, that was off-putting because he was so phony and obnoxious.
5. Tommy Lee Jones
Also, he can be great, but there isn't a single Tommy Lee Jones performance where I don't have to try hard to appreciate what he's doing. His old fashioned, in control facade is so present in every single role, you have to concentrate to see if he's really doing anything. He's had a good run lately, but I can do with just about anything where he's in law enforcement.