who plays zach in the big bang theory
Brian Thomas Smith Brian Thomas Smith (born May 13, 1977) is an American actor and comedian known for playing the dim-witted but kind-hearted Zack Johnson on The Big Bang Theory, and his appearances on Fear Factor and The Amazing Race Season 7. He has also made guest appearances on Two and a Half Men and The 100 Greatest TV Quotes & Catchphrases.
John Ross Bowie John Ross Bowie (born May 30, 1971) is an American actor and comedian best known for playing Barry Kripke on The Big Bang Theory and, beginning in 2016, Jimmy DiMeo on Speechless.