I am watching Sex and the City all over the again, and it's interesting to see how some of the minor characters in the series have become huge stars now. I was just watching the second-season episode 'They Shoot Single People, Don't They?' and noticed two big stars who were virtually unknown back then: Bradley Cooper (of The Hangover) and Matthew Morrison (Mr. Schuster in Glee). Cooper has about five minutes of screen time playing the guy Carrie picks up from a bar when she appears on the cover of New York Magazine and Morrison has less than ten seconds, playing the role of a waiter (you can barely see him!).
Image Courtesy: New York Magazine