New York-born actor Charlie Day appeared in an impressive array of Williamstown Theatre productions before transitioning into television with a brief appearance in the Mary Tyler Moore/Valerie Harper reunion special Mary and Rhoda. Subsequent roles on Madigan Men, Law & Order, and Third Watch helped Day build an impressive list of small-screen credits, and in 2005 he joined the cast of the deliciously warped FX sitcom It's Always Sunny in Philadelphia. Cast as an inherently good-natured guy often done in by his own shady intentions and poor luck with ladies, Day held his own opposite Danny DeVito, helping to establish himself as a respectable rising talent. Although he tried to stretch out in projects like A Quiet Little Marriage and Going the Distance, it was the 2011 hit Horrible Bosses that earned him his greatest praise apart from It's Always Sunny in Philadelphia. In 2006 he married his Philadelphia co-star Mary Elizabeth Ellis.
Biography by Jason Buchanan
- The son of two music teachers, he grew up in Rhode Island.
- Played baseball and was active in dramatics in college.
- After college, appeared on-stage at the Williamstown (MA) Theater Festival and in Boston.
- Made his TV debut (as "mailroom kid") in the 2000 Mary Tyler Moore-Valerie Harper TV movie Mary and Rhoda.
- Was a regular on the short-lived Fox sitcom Luis (2003); had guest roles on Madigan Men, Law & Order and Third Watch.
- Is married to Mary Elizabeth Ellis, who plays the Waitress, the object of his character Charlie's unreturned affections on It's Always Sunny in Philadelphia. The couple also played incestuous siblings in a 2004 episode of Reno 911.