10 Tiny Matt Damon Roles That Prove He's The King Of Cameos
9. Entourage
Of course a list of cameos has to mention Entourage. Over its eight seasons the show was packed full of minor appearances from small names - so much so that there's a Wikipedia page dedicated to listing the several that occur in each episode.
In the season 6 finale, Matt Damon appears in a few scenes, along with Bono and LeBron James, trying to get the main characters to donate money to a kids' charity. At first he's patient, but quickly becomes furiously passionate at the plight of the kids.
It's impressive that even for such a small part Damon demonstrates such great acting ability - especially in his last appearance, which ends with him sobbing into a phone at the lack of a check for his charity.
This cameo confirms one thing about the actor, though - if he asks you to do something, you do it.