You Won't Believe What the Cast of "The Big Bang Theory" Looks Like Now

Bob Newhart as Arthur Jeffries

Bob Newhart played Arthur Jeffries, also known as Professor Proton—the star of a science show that Sheldon and Leonard watched as children. The character was an homage to Mr. Wizard. In real life, Newhart is a famous comedian. He received a Primetime Emmy Award for the role.

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You Won't Believe What the Cast of "The Big Bang Theory" Looks Like Now

Bob Newhart as Arthur Jeffries

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