Long list, but here are a few that were more than just a quick meet.
Vinnie Paz (Boxer) Met him a number of times, not a big fan the guys a jerk. Got mad at me when I informed him regardless of who he was he needed to pay his bill (working at friendly's resturant at the time). Also was there when my cousin, who worked at the local cinema, had to have security escort him out because he felt he and his girl didn't need to buy a ticket. Met him again about a year and a half ago in Store 24, gave me a nasty look when he asked me if I wanted an autograph and I said no.
Steven Tyler (Aerosmith) met him at King Richard's Faire, got to take some pictures with him and talked about the blues album they had recoreded but never released. He was really friendly and wearing a jesters hat.
Ritchie Blackmore (guitarist) My band opened for him at the Living Room in Providence, RI. During sound check he watched us close and actually played my guitar because he thought the sound I had was interesting. Gave us alot of pointers on working in the buisness.
Jake E Lee (former ozzy guitarist) met him at Lupo's when he was in badlands, a bunch of us spent the night in his hotel room playing quarters (a drinking game), and trivial pursuit (which we also turned into a drinking game).
Vince Neil, Nikki Six, and Tommy Lee (no mick), sat with them at the Foxy Lady after one of their shows. Vince gave me a pile of ones
, had a good time and drank way too much.
Steve Jackson (Steve Jackson Games) met him at Dovercon, played Ogre with him and later played a few GURPS games.
Others I have met
Scott Ian, Angus Young, Brian Johnson, Vernon Reid, Arnold Swarzzeneger (?sp), Mel Brooks, Dimebag Darrell, Dave Mustaine, Dave Ellefson, Chris Poland.
The list goes on, I met alot of people in the music buisness through my stepfather being a sound engineer. Also a ton of famous people I have met at conventions.