Associated Press
From left, actors Kunal Nayyar, Melissa Rauch, Jim Parsons, Mayim Bialik and Simon Helberg, from the cast of "The Big Bang Theory," arrive at the 21st Annual 'A Night at Sardi's' to benefit the Alzheimer's Association at the Beverly Hilton Hotel on Wednesday, March 20, 2013 in Beverly Hills, Calif. (Photo by Jordan Strauss/Invision for Alzheimer's Association/AP Images)

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