Brian Thomas Smith: Brian Thomas Smith. Actor: The Big Bang Theory. Brian Thomas Smith was born on 13 May 1977 in St. Louis, Missouri, USA. He is an actor and producer, known for The Big Bang Theory (2007), Danny Collins (2015) and The Wedding Party (2016).
Known For: The Big Bang Theory (Zack Johnson), Danny Collins (JuddBusy Work), The Wedding Party (Colt(as Brian Smith)), The Flip Side (Actor(as Brian Smith))