Jim Carrey

Flexible body movements
Frequently plays a character who wears green or is green
Makes weird facial expressions in his more comical roles. A lot of times, the expression is accompanied by an equally weird voice or laugh.
In dramatic roles, often plays a character who discovers a bizarre truth about the foundations of his life
Wild erratic manner of speaking

Wrote letters to Tupac Shakur when Tupac was in prison to help him laugh and smile. Tupac said that Carrey was his favorite actor.
As a child, he used to wear his tap shoes to bed just in case his parents needed cheering up in the middle of the night.
He has said that Joel, his painfully shy, lovelorn character in Se mi lasci ti cancello (2004), is closer to what he's like when he's not "on," and that making the film led him to reflect on his past relationships and why they didn't work out.
Was a straight-A student until he dropped out.
Went through depression in the 1980s while struggling to make ends meet as a comedian.

I tend to stay up late, not because I'm partying but because it's the only time of day when I'm alone and I don't have to be on, performing.
Until Ace Ventura - L'acchiappanimali (1994), no actor had considered talking through his ass.
[about his chances of winning at the 1998 Golden Globes Awards] It's insane . . . I mean, [Jack Nicholson], [Dustin Hoffman], [Samuel L. Jackson], [Kevin Kline]--I don't see how I can lose.
I've been dubbed the man most responsible for the dumbing of America, so obviously I don't put much stock into thoughts like (the theme of the 'dumbing down' of contemporary comedy). People love to laugh, and most people can find humor in just about anything, which is great. Trying to label or categorize comedy is ridiculous. I mean, if you laugh at a fart joke, does that make you a moron? I don't think so.
Maybe there is no actual place called hell. Maybe hell is just having to listen to our grandparents breathe through their noses when they're eating sandwiches.