Back when I was a DJ in college, I met LSD guru Timothy Leary, musicians Joe Strummer and Mick Jones from The Clash, Ray & Dave Davies from The Kinks, The B-52's, Joe Jackson, Peter Wolf of the J. Geils band, Marshall Crenshaw (douchebag!!!) and Southside Johnny.
When I worked at Foxwoods, I met Steve Howe, Bill Bruford (both from Yes), Carl Palmer (of ELP) and John Wetton (Asia), Robert Klein, Richard Belzer (The world's most successful non-funny comedian), most of the male cast of The Sopranos, John Mellencamp, Mariah Carey, Gloria Estefan, plus many others who escape me at this moment.
When I worked in Newport, they were filming Amistad, and most of the cast were staying at our hotel. I met Steven Spielberg when he and Kate Capshaw came down to the restaurant to order some food to take back to their room for their kids because Room Service was swamped that night. For cast members, I met Pete Postlethwaite, Nigel Hawthorne, Matthew McConaughey (I was taller than him and I'm 5' 7"), David Paymer (Real nice guy), and Stellan Skarsgård.