Kevin Sussman is an American actor and comedian. He played Walter on the ABC comedy-drama Ugly Betty and Stuart Bloom on the CBS sitcom The Big Bang Theory. Introduced in the second season, starting with the sixth season of The Big Bang Theory through to the twelfth and final season, he was promoted to a series regular.

The sixth season of the American sitcom The Big Bang Theory aired on CBS from September 27, 2012 to May 16, 2013.