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Season 3 – The Big Bang Theory: Full Cast & Crew Sep 2009 Comedy
Mensa-fied best friends and roommates Leonard and Sheldon, physicists who work at the California Institute of Technology, may be able to tell everybody more than they want to know about quantum physics, but getting through most basic social situations, especially ones involving women, totally baffles them. How lucky, then, that babe-alicious waitress/aspiring actress Penny moves in next door. Frequently seen hanging out with Leonard and Sheldon are friends and fellow Caltech scientists Wolowitz and Koothrappali. Will worlds collide? Does Einstein theorize in the woods? TV-PG Air Date: Sep 21, 2009 See TV Season Details

Cast & Crew

All Cast Crew
Johnny Galecki Leonard Hofstadter Actor Jim Parsons Sheldon Cooper Actor Kaley Cuoco Penny Actor Simon Helberg Howard Wolowitz Actor Kunal Nayyar Raj Koothrappali Actor Wil Wheaton Wil Wheaton Guest Star Molly Morgan Bethany Guest Star Elizabeth Bogush Dr. Catherine Millstone Guest Star Mayim Bialik Amy Farrah Fowler Guest Star Julio Oscar Mechoso Officer Hackett Guest Star Kevin Sussman Stuart Bloom Guest Star Carol Ann Susi Debbie Wolowitz Guest Voice John Ross Bowie Barry Kripke Guest Star Stan Lee Stan Lee Guest Star Melissa Rauch Bernadette Rostenkowski Guest Star Jen Drohan Martha Guest Star David Trice Waiter Guest Star Lauri Johnson Mrs. Gunderson Guest Star Katee Sackhoff Katee Sackhoff Guest Star Ira Flatow Ira Flatow Guest Star Chuck Lorre Executive Producer, Writer Bill Prady Executive Producer, Writer Steven Molaro Writer Lee Aronsohn Writer Steve Holland Writer Jim Reynolds Writer Mark Cendrowski Director Richard Rosenstock Writer Maria Ferrari Writer David Goetsch Writer Nicole Lorre Writer Steve Molaro Writer Jessica Ambrosetti Writer Eric Kaplan Writer Anthony Rich Director Dave Boerger Writer Peter Chakos Director