Early life

Day was born in New York, New York. His mother, Mary (née Peckham), was a piano teacher at The Pennfield School in Portsmouth, Rhode Island. His father, Dr. Thomas Charles Day, is a retired professor of music history at Salve Regina University in Newport, Rhode Island. His mother has English, Irish, and Welsh ancestry, while his father is of Irish and Italian descent. Day spent most of his childhood in Middletown, Rhode Island.

Day attended Pennfield School and graduated from the Portsmouth Abbey School, both in Portsmouth, Rhode Island. He starred on the baseball team at the Portsmouth Abbey School, playing shortstop for the Ravens. In 1998, he received a bachelor's degree from Merrimack College in North Andover, Massachusetts. At Merrimack, he was active in the Onstagers, Merrimack's student theater organization. He also played varsity baseball for the Warriors baseball team. During the summers of his college years, he was active in the training programs at the Williamstown Theatre Festival in Williamstown, Massachusetts. In 2014, he received an honorary doctorate in performing arts from Merrimack, where he also delivered that year's keynote address.

Career

Besides playing Charlie Kelly on the hit FX television series It's Always Sunny in Philadelphia, he is also one of the show's executive producers and one of its writers, along with Rob McElhenney and Glenn Howerton. He has also appeared on several other television shows such as Third Watch, Law & Order, and Reno 911!.

He appeared in New Line Cinema's Horrible Bosses in July 2011, with Jason Bateman, Jason Sudeikis, Kevin Spacey, Jennifer Aniston, Colin Farrell, and Jamie Foxx. He also had a role in the 2010 film Going the Distance, alongside Justin Long, Jason Sudeikis, and Drew Barrymore. In 2013, he voiced a character named Art in the Pixar animated film Monsters University and appeared in Guillermo del Toro's film Pacific Rim. Day is set to reprise his role for the Pacific Rim sequel.

Day has also been a producer for the television shows How to Be a Gentleman and Unsupervised.

Day hosted the November 5, 2011 episode of Saturday Night Live (SNL) with Maroon 5 as the musical guest. He was the second cast member from It's Always Sunny in Philadelphia to host SNL (after Danny DeVito, though DeVito hosted SNL before It's Always Sunny in Philadelphia premiered). DeVito made a special appearance during Day's opening monologue.

In September 2014, Day provided his voice for The Sims 4 TV spots.

Personal life

Day has been married to actress Mary Elizabeth Ellis since March 4, 2006. They met in 2001 and were dating in 2004 when they co-starred as incestuous siblings on Reno 911. Ellis has a recurring role on It's Always Sunny in Philadelphia as "The Waitress", a coffee shop employee and an object of obsession for Day's character. The couple had their first child, a son named Russell Wallace Day, on December 15, 2011.

Day has written and improvised some of the music featured in It's Always Sunny in Philadelphia.

Filmography

Film

Year	Title	Role	Notes
2000	Mary and Rhoda	Mailroom Kid	Television film
2001	Late Summer	Trevor	Short film
2001	Campfire Stories	Joe Boner
2002	Bad Company	Stoner	Uncredited
2005	Love Thy Neighbor	Video Clerk
2008	A Quiet Little Marriage	Adam
2010	Going the Distance	Dan
2011	Horrible Bosses	Dale Arbus
2013	Monsters University	Art	Voice
2013	Pacific Rim	Newt Geiszler
2013	Party Central	Art	Voice Short film
2014	The Lego Movie	Benny	Voice
2014	Horrible Bosses 2	Dale Arbus
2015	Vacation	Chad
2016	The Hollars	Jason
2016	Fist Fight		Post-production

Television

Year	Title	Role	Notes
2000	Madigan Men	Clerk	Episode: "Three Guys, a Girl and a Conversation Nook"
2001	Law & Order	Jeremy	Episode: "Swept Away - A Very Special Episode"
2001-2004	Third Watch	Michael Boscorelli	5 episodes
2003	Luis	Richie	10 episodes
2004	Reno 911!	Inbred Twin	Episode: "Not Without My Mustache"
2005-present	It's Always Sunny in Philadelphia	Charlie Kelly	Also executive producer and writer
2011	Saturday Night Live	Himself (host)	Episode: "Charlie Day/Maroon 5"
2012	Unsupervised	Jesse Judge	Voice Episode: "Jesse Judge Lawncare Incorporated"
2012	Saturday Night Live	Congressman Fenton Worthington Carrey	Episode: "Jamie Foxx/Ne-Yo"
2012	American Dad!	Meth Head	Voice Episode: "Adventures in Hayleysitting"
2014	Drunk History	Allan Pinkerton	Episode: "Baltimore"

Video games

Year	Title	Role
2013	Disney Infinity	Art
2015	Lego Dimensions	Benny

Awards and nominations

Year	Award	Category	Film/Show	Result
2011	Critics' Choice Television Award	Best Actor in a Comedy Series	It's Always Sunny in Philadelphia	Nominated
	Satellite Award	Best Actor - Television Series Musical or Comedy	It's Always Sunny in Philadelphia	Nominated

[ Source: Wikipedia ]