Harrison Ford -- Harrison Ford did in fact do a lot of bit and background work prior to being cast in Star Wars. But was working as a carpenter when cast in the role of Han Solo. Star Wars went on to be the highest grossing film of all time.
Behind the Scenes Star Wars Photos. It saddens me to hear people my age (and a little bit younger) who have never seen the Star Wars films (especially talking about the original trilogy here), they really do not know what they are missing.