Ok, I'll share
Off the top of my head...
Gene Simmons (Really nice in person)
Dave Mustaine (asked me if I had any pot. I didn't)
King Diamond (Not nearly as evil and scary as you would think
)
Ronnie James Dio (The best metal singer ever, and super nice. Class act)
Ken Foree (Peter - Dawn of the Dead)
Tom Savini (Special Effects artist - Dawn of the Dead, Friday the 13th etc.)
Scott Reiniger (Roger - Dawn of the Dead)
Bill Hinzman (The first zombie seen in Night of the Living Dead)
As you can see, I'm into metal and horror movies. I've seen MANY others at assorted concerts and comic/horror conventions, but I haven't actually talked to them.
Oh, and on my honeymoon flight to Maui I was in first class with Kenny G (very short, and surprisingly muscular) and Minnie Driver. And when I was in Maui I saw Tyra Banks in a restaurant. She was stunning.
Funny story, my Mother-in-law has had various celebrities in and out of her office building. She shared an elevator with Howard Stern and didn't recognize him. How can you NOT recognize Howard Stern! She also had William Shatner in her conference room and didn't recognize him either. Both times she was told who they were after the fact. And she met Dan Marino and got me his autograph because she knows I like football, but she didn't know who he was. (I think he played for some team in Florida right?
)