Background
Simpson was born in Hackettstown, New Jersey, the youngest of three brothers.
Simpson was born in Hackettstown, New Jersey, the youngest of three brothers.
Bloomsburg University of Pennsylvania.
He is best known for his television work, which includes roles in The Newsroom, House of Cards, Breakout Kings, Psychology, lieutenant"s Always Sunny in Philadelphia, Computer Society of India: Crime Scene Investigation, My Name Is Earl and 24. His film credits include White House Down, Date Night, Herbie: Fully Loaded, Abraham Lincoln Vampire Hunter and Loser. After graduating from Bloomsburg University with a Bachelor of Arts in theater, he acted for four seasons at the Williamstown Theatre Festival in Massachusetts.
Simpson made his film debut in the teen comedy Loser (2000), which was followed by guest spots in episodes of New York City Police Department Blue, Cold Case and Carnivàle, as well as roles in the films Doctorate.E.B.S., Herbie: Fully Loaded, Stay Alive, Seraphim Falls and David Fincher"s Zodiac.
In 2008, Simpson starred in The Farnsworth Invention on Broadway. From 2008 to 2009, Simpson appeared as fictional character Lyle the Intern on The Late Show with David Letterman.
During that time, he also appeared in episodes of Computer Society of India, My Name is Earl, House and Psychology, and had supporting roles in The Invention of Lying and Date Night. Other notable credits include lieutenant"s Always Sunny in Philadelphia, on which Simpson appears frequently as Liam McPoyle, and the A&East series Breakout Kings, where he starred as Lloyd Lowery.
Most recently, Simpson appeared in the films Abraham Lincoln: Vampire Hunter, The Truth About Emanuel and White House Down.
He also appeared as a recurring character on House of Cards.