Matt Damon to me is immediately Jason Bourne - forgot he had ever played any other character, lol!
That's funny! I love Matt Damon as Jason Bourne, but to me he's cast against type. I usually think of him as sort of a shambling, good-natured, reasonably intelligent but approachable, regular-guy type. Like the characters he played in "Brothers Grimm," "Gerry," "Oceans 11, 12 and 13," "Dogma," etc.