Actors Kaley Cuoco, left, and Zachary Levi pose backstage at the 21st Annual 'A Night at Sardi's' to benefit the Alzheimer's Association at the Beverly Hilton Hotel on March 20, 2013 in Beverly Hills,... more 
Actors Kaley Cuoco, left, and Zachary Levi pose backstage at the 21st Annual 'A Night at Sardi's' to benefit the Alzheimer's Association at the Beverly Hilton Hotel on March 20, 2013 in Beverly Hills, Calif. (Photo by John Shearer/Invision for Alzheimer's Association/AP Images) less 
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Associated Press
Thu, Mar 21, 2013 5:34 AM EDT