Kevin Sussman (born December 4, 1970) is an American actor. He is known for playing Stuart Bloom on the CBS sitcom The Big Bang Theory and Walter on the ABC comedy-drama Ugly Betty. Starting with the sixth season of The Big Bang Theory, he was promoted to a series regular.Sussman is one of four brothers, born to Jewish parents. He attended the College of Staten Island for one year and went on to graduate from the American Academy of Dramatic Arts in Manhattan. He later studied with acting teacher Uta Hagen for four years. Wikipedia
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