The Geologist From The Big Bang Theory

Actor Brian Posehn is best known as the quirky geologist Bert Kibbler, but he is a multitalented creative force behind some of television’s most influential comedy shows. He started his career writing and performing on cult-classic sketch programs.

Beyond his role as the lovable rock-enthusiast on The Big Bang Theory, Posehn helped shape modern comedy by writing for the legendary Mr. Show with Bob and David. He has lent his distinct voice to countless animated series and even produces his own heavy metal music. His career proves that a background in edgy sketch comedy can lead to some of the most memorable character roles in mainstream sitcom history.