Here's some people that I've run into, or at least see them do their thing up close.

Paul McCartney John Doe Wallace Efrem Zimblast, Jr. Al Casey
Ringo Starr Exene Cervenka Ladmo Christopher Guest Tom Petty
Yoko Ono D.J Bonebrake Pat McMahon Jamie Lee Curtis Dave Alvin
Arnold Schwarzenegger Billy Zoom Mike Condello Andy Griffith Tom Waits
"Weird Al" Yankovic Frank Zappa Monty Python Michael McKean Mark Mothersbaugh
George A. Romero Nancy Cartwright Eric Idle Reese Witherspoon Steve Jones
Martin Landau Joe Dante Michael Palin Fran Drescher Axl Rose
Top Jimmy Steven Speilberg William Shatner Tim Curry Eddie Murphy
Ronald Reagan Amy Irving Leonard Nimoy Richard O'Brien Nick Nolte
Gerald Ford Harrison Ford DeForest Kelly Barry Bostwick Famke Janssen
George H.W. Bush Bill Mumy James Doohan Jane Weidlin Harry Anderson
Lee Majors John Ritter George Takei Frank Gambale John Larroquette
Michael Richards Farah Fawcett Walter Koenig Gene Simmons Richard Crenna
Drew Carey Winona Ryder Nichelle Nichols Paul Stanley Jack Nicholson
Ryan Stiles Viggo Mortensen Majel Barrett Rodney Bingenheimer Robbie Rist
Kathy Kinney Danny Elfman Gene Roddenberry Chrissie Hynde Mira Furlan
Martin Sheen Bridget Fonda Jonathan Frakes Phil Collins Jim Belushi
Tobey Maguire Gina Gershon Brent Spiner George Hamilton Johnny Thunders
Kirsten Dunst Geena Davis Marina Sirtis Ken Foree Sex Pistols
Willem Dafoe John Stamos John DeLancie Tom Savini Elvis Costello
James Franco Muhammed Ali Rene Auberjonois Tony Todd The Who
Rosemary Harris Keenan Ivory Wayans Terry Farrell Courtney Love The Clash
Annie Potts Kim Wayans Armin Shimerman Nina Hagen The Rolling Stones
Fred Gwynne Marlon Wayans Ethan Phillips El Duce DEVO
Al Lewis Damon Wayans Alexander Siddig Slash Dead Kennedys
Ernest Borgnine Monica Lewinsky Jeri Ryan Steve Vai Circle Jerks