1. His film credits include White House Down, Abraham Lincoln: Vampire Hunter, Date Night, Zodiak, Herbie: W pełni załadowany, and Loser.
2. Simpson was born in Hackettstown, New Jersey, the youngest of three brothers.
3. After graduating from Bloomsburg University with a Bachelor of Arts in theater, he acted for four seasons at the Williamstown Theatre Festival in Massachusetts.
4. His portrayal of Philo T. Farnsworth was described as “superb” by The Chicago Tribune,
5. Z 2008 do 2009, Simpson appeared as Lyle the Intern on The Late Show with David Letterman.
6. W tym czasie, he also appeared on episodes of CSI: Kryminalne, My Name is Earl, House M.D. and Psych, and had supporting roles in the films The Invention of Lying and Date Night.
7. W 2012, Simpson appeared in the films Abraham Lincoln: Vampire Hunter, The Truth About Emanuel, and White House Down.
8. His character is a guest in the fictional Westworld, a technologically advanced Wild West-themed amusement park populated by androids dubbed “hosts”, who has formed a protective bond with the lead host, Dolores .
9. Simpson met actress Melanie Lynskey in 2001, when they both appeared in Rose Red.
10. The pair became engaged in 2005 and married on April 14, 2007, in a chapel near Queenstown, Nowa Zelandia.
11. Lynskey filed for divorce from Simpson on September 25, 2012, powołując się na różnice nie do pogodzenia.