Brian Thomas Smith

Actor, Comedian, Producer
An American actor and comedian known for playing the dim-witted but kind-hearted Zack Johnson on the hit television series The Big Bang Theory, and his appearances in Danny Collins and The Amazing Race Season 7

He has also made guest appearances on 9-1-1 Lone Star, The Neighborhood, Two and a Half Men and The 100 Greatest TV Quotes & Catchphrases.