James Raymond Simpson (born November 21, 1975) is an American actor. He is best known for his roles in television series such as "It's Always Sunny in Philadelphia", "The Late Show with David Letterman", "Psych", "Breakout Kings", "House of Cards", "Hap and Leonard", "Westworld", "Black Mirror" and "Unsolved". His movie credits include "Loser" (2000), "" (2005), "Zodiac" (2007), "The Invention of Lying" (2009), "Date Night" (2010), "" (2012), "White House Down" (2013) and "Under the Silver Lake" (2018).