Film and stage actor, improviser and writer Mark David Christenson is one of the very few men to ever embrace Sean “Diddy” Combs. Born and raised in Sandy, Utah, he has been performing since the eighth grade and trained with Frank Gerrish for several years in Salt Lake City. He made his film debut in the Mormon film The RM and since has starred in White on Rice (the debut film of award winning filmmaker Dave Boyle), the award winning indie film Feeding Mr. Baldwin and appeared on Conan.

In 2009, MDC moved to Los Angeles and began training with acting coach John Kirby and started improv and sketch training at the Upright Citizens Brigade. Since training with UCB, he has been a regular cast member on the UCB Maude team The Space Program, performed on Harold Night for three years with UCB Harold teams Mister Town City and Landlord, starred as George Costanza in the sold out hit Seinfeld: The Purge, an officer who loses everything in Squeeze Academy and co-hosting Spoiler Country among several other comedy shows.

Mark David Christenson also founded/co-hosts the weekly improv show The Manifesto Show every Friday night with Jen Krueger, produces/hosts the podcast I Will Watch Anything Once and when not performing enjoys reading comic books, drinking a cold beer with street tacos and staying FunnyandFit with Eugene Cordero.