Clark is best known as Dean Masters on the first season of House of Cards and Connor Riley, the Irish hit man on Gotham. He grew up splitting time between Kansas City, Missouri with his mother and summers with his father in Corning, Iowa. His parents divorced when he was very young. He found a love of theatre at North Kansas City High School where he also played baseball and tennis. He graduated from Northwestern University with a B.S. in Speech and a major in Theatre. Later he received a M.F.A for the University of Missouri-KC in acting and directing. At Northwestern, he was a varsity saber fencer. His senior year, he qualified for the NCAA Championship, was co-MVP of the team and was named the May Court Outstanding Senior Athlete. He did two national tours with The Acting Company appeared on Broadway in Tom Stoppard's Jumpers and is a company member at the Shakespeare Theatre of New Jersey. He has been married for twenty years to his college sweetheart. They have two children and live in the New York area.