I've met a lot of professional baseball players and got their autographs. I don't know if they are considered "famous" lol
I met Spiderman when they were filming the last movie. They did some filming in downtown Cleveland, and I work there in the eves. It just happened to be "bring your kid to work day", and my coworker had her 7 year old son there. So, on our break we went out to see if we could get a look at Spiderman, and there he was!!
What a nice guy he was! He actually posed for pictures and talked to my coworker's son, which really made his day!! I got some pictures for him with my cell phone camera. It was so exciting for him!