Brian Posehn

Celebrity Guest

Brian Posehn is a stand-up comedian, actor, voice actor, and writer, best known for his roles as Jim Kuback on The WB's “Mission Hill” and Brian Spukowski on Comedy Central's “The Sarah Silverman Program.” Posehn had a recurring role on The Big Bang Theory as geologist Bert Kibbler, as well as providing the voices of Sour Cream in “Steven Universe,” Mr. Rected in “Captain Underpants: The First Epic Movie,” as well as featured characters in shows like “Bob’s Burgers,” “Adventure Time,” “Kim Possible,” and many more!