Kevin Sussman

Kevin Sussman (born December 4, 1970) is an American actor of television and film perhaps best known for his recurring roles as "Stuart" on The Big Bang Theory and as "Walter" on the now defunct comedy-drama Ugly Betty. Sussman has been promoted to series regular on CBS sitcom The Big Bang Theory starting from the sixth season.

Sussman was born in Staten Island, New York, one of four brothers. He attended the College of Staten Island for one year and went on to graduate from the American Academy of Dramatic Arts in New York City. He later studied with acting teacher Uta Hagen for four years.

Filmography
For the complete list, see Kevin Sussman's official website.