Who Is This 'Stached Man?

Here are a couple new pics of an A-List actor in full make-up and costume on the set of his new movie The Informant here in SoCal ... do you recognize him? Photo credit: X17It's Matt Damon lookin' like he's about 4 jelly donuts away from retiring from the police force. Honestly, he don't look too shabby in this get-up. I could really do without the awful pleated pants and the John Mayer retro-