James Raymond "Jimmi" Simpson (born November 21, 1975 in Hackettstown, New Jersey) is an American actor known largely for his television work, particularly in Westworld, House of Cards (US), Breakout Kings and It's Always Sunny in Philadelphia.
Film Roles
- 2000 Loser as Noah
- 2004 D.E.B.S. as Scud
- 2005 Herbie: Fully Loaded as Crash
- 2006 Stay Alive as Phineus
- 2007 Seraphim Falls as Big Brother
- 2007 Itty Bitty Titty Committee as Chris
- 2007 Zodiac as Mike Mageau
- 2009 The Invention of Lying as Bob
- 2010 Date Night as Armstrong
- 2012 Abraham Lincoln: Vampire Hunter as Joshua Speed
- 2013 White House Down as Skip Tyler
- 2013 Knights of Badassdom as Ronnie Kwok
Television Roles
- 2002 Rose Red as Kevin Bollinger
- 2002 24 as Chris
- 2005 Carnivàle as Lee
- 2005 - present It's Always Sunny in Philadelphia as Liam McPoyle
- 2006 My Name Is Earl as David Hayes
- 2008 CSI: Crime Scene Investigation as Thomas Dnover
- 2008-2009 Late Show With David Letterman as Lyle
- 2009-2013 Psych as Mary Lightly
- 2011-2012 Breakout Kings as Lloyd Lowery
- 2013-2016 Person of Interest as Logan Pierce
- 2014-2015 House of Cards (US) as Gavin Orsay
- 2014 The Newsroom as Jack Spaniel
- 2016 Hap and Leonard as Soldier
- 2016 - present Westworld as William
- 2017 Black Mirror: USS Callister
