Brian Posehn

Brian Posehn (born July 6, 1966) is an American stand-up comedian, actor, voice actor, musician, and writer. He gained recognition through his recurring roles in HBO's Mr. Show with Bob and David, The WB's Mission Hill, and Comedy Central's The Sarah Silverman Program. Posehn is also known for his role as geologist Bert Kibbler on The Big Bang Theory. As a stand-up comedian, he has released four comedy albums and a music album. Posehn is the host of the Dungeons & Dragons podcast Nerd Poker and has provided voice work for video games like Halo 2 and Brütal Legend. He was nominated for two Primetime Emmy Awards for his writing on Mr. Show with Bob and David.