Oh what a long list this will be.
Nicolas Cage: Your hair is just too much and you went from winning an acadamy award to playing the same character in almost every movie. I *spoiler* laughed and smiled when he was set on fire in Kickass because I swear I've had wet dreams of doing the same to him.
Hayden Christensen: Who know playing an arrogant whiny prick in all of your movies could actually lead to a career. Oh well, I guess being attractive gets you more roles than just being a solid actor. I'd want to beat that little fuck to death with his own ego.
Ben Stiller: I've never seen anyone fuck the donkey as bad as Ben Stiller. A very small section of his movies are tolerable and the rest are anti-funny. They make me want to bash my skull into a brick wall as opposed to wondering who actually finds him funny. Meet the Parents part 3? No thanks.
Owen Wilson: See: Ben Stiller.
Keanu Reaves: This one is more due to utter confusion. You're in a lot of fantastic movies yet you can't act? How? Maybe it's because you've got a brilliant agent and you always play the role of the dumbfounded guy (Matrix, bill & Ted, etc.).
Michael Cera: Same role, different movie.
Ben Affleck: Stop acting, keep directing and writing.
Paul Walker: See Hayden Christensen and subtract the whining and add a tone of voice that just makes you want to punch him no matter what he's saying.
Megan Fox: This is one of those creatures where science can't quite place why she exists. She contributes nothing to this world and her looks are overrated.
Matthew McConaughey: I can't act anymore so how about I take my shirt off. Douche.