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, The Amazing Race Season 7, and current hit series The United States of Al.

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.