Scrolling through my phone, here are people you would possibly know:
ABM
AgentDrazenPetrovic (El Presidente, I think?)
Barney Frank
Bill Bayno
Brian Wheeler
Cylk Cozart (White Men Can't Jump, anyone?)
Cynthia Weil (you may not know her but you know the songs she's written)
David Boreanaz
Donald Faison
Emily Deschanel
Estelle Parsons (Oscar winning actress, Rosanne's TV mom)
Godfrey
Jason (PHXBlazer1)
Jeffrey Jones
Joel David Moore (Dodgeball, Avatar)
John Lukrofka (HCP)
Jonathan Lipnicki (boy from Jerry Maguire)
Kathy Brier (Emmy nominee for One Life To Live)
Ken Davitian (fat producer guy in Borat)
Kristen Wilson (Eddie Murphy's wife in Dr Doolittle)
Mark Roth (discovered way to induce suspended animation)
Nathan Lane
Sam Harris (first Star Search Grand Champion)
Stephen Schwartz (wrote scores to Godspell, Wicked)
The Amazing Kreskin