4) He has a sense of humor about himself
Another testament to how funny Damon can be are the instances where he has played the character of Matt Damon on screen. Perhaps the best example of this can be seen on some of his devastatingly realistic appearances on Jimmy Kimmel’s show, but he’s also shown up in Entourage and House of Lies, parodying his trademark intensity and charitable efforts. Entourage in particular plays off the perception that he can switch from super cool nice guy who’s just chatting with you to terrifying monster who will threaten your life for crossing him.
It’s becoming more and more common for celebrities to do this in order to show they don’t take themselves too seriously and are able to laugh at themselves and the ridiculousness and artificiality of the caricatures we in the public are able to get to know of them. This Is the End is the most recent example of stars taking seeming criticisms or observations about strange aspects of their publicly perceived identities and playing them up for laughs, exaggerating them in a way that is meant to show the absurdity of reducing a person to what is known of them through magazines and Entertainment Tonight.
It’s hard to argue against the opinion that Damon is one of the best at this, though, not only through the quality of the “Matt Damon as Matt Damon” performances, but the sheer quantity and willingness for him to do them.