Jim Carrey

Don't you hate it when an actor in different roles is pretty much always playing, you know, his shtick. Robin Williams (with some exceptions), Nick Cage (wife's excellent suggestion). At the end of Liar, Liar, there's a scene where Carrey's character, rehabilitated, is with his wife and kid, and for just a moment the Jim Carrey face is gone and he looks like a decent human being. If he could play that guy...

As I recall, Yes Man was pretty good. Except, as stated, Jim playing Jim.

Oh noes! Per IMDB, he's in KickAss 2. (Come to think of it, Cage was almost tolerable in KA1. Plus, he got horribly offed, so maybe Carrey will be, too.)