Charlie Day

Subsequently, he co-created the Apple TV+ comedy Mythic Quest (2020–2025) with Rob McElhenney and Megan Ganz. In film, Day is best known for his performances as Dr. Newton Geiszler in Guillermo del Toro's Pacific Rim (2013), Dale Arbus in the comedy Horrible Bosses (2011) and its sequel Horrible Bosses 2 (2014), and Andy Campbell in the comedy Fist Fight (2017). He is also known for his voice roles in Monsters University (2013), The Lego Movie film franchise (2014–2019), and Nintendo franchise character Luigi in The Super Mario Bros. Movie (2023) and its sequel, The Super Mario Galaxy Movie (2026). He made his directorial debut with Fool's Paradise (2023).

Charlie Day studied at Merrimack College and Portsmouth Abbey School. The recorded working language is English. The field of work recorded is acting, literature and film production. Residence is recorded at Los Angeles. Works named in the authority record are It's Always Sunny in Philadelphia.

• Birth Name — Charles Peckham Day • Born — 9 February 1976 • Birthplace — New York City, U.S. • Education — Merrimack College (BA) • Occupation — * Actor • comedian • writer • producer • Years Active — 1997–present • Children — 1

Day was born on February 9, 1976, in New York City. His family lived in the Riverdale neighborhood of the Bronx. He spent most of his childhood in Middletown, Rhode Island. He is the younger of two children, with an elder sister named Alice. His father, Dr. Thomas Charles Day, who is of Italian and Irish descent, is a retired professor of music history at Salve Regina University in Newport, Rhode Island. His mother, Mary (née Peckham), is of English descent and was a music teacher at The Pennfield School (formerly The New School) in Portsmouth, Rhode Island. His paternal grandfather changed the family name from Del Giorno to Day to assimilate during WWII; he died in a military training accident when his son Thomas was only four. Day attended Pennfield School and graduated from the Portsmouth Abbey School, both in Portsmouth, Rhode Island. He attended Merrimack College, where he majored in art history and was active in the Onstagers, Merrimack's student theater organization. He graduated in 1998. In May 2014, he gave the commencement speech for Merrimack's graduating class and received an honorary Ph.D.

• Illustration — Day at the 2010 San Diego Comic-Con While still in college, Day was active in the training programs at the Williamstown Theatre Festival every summer from 1997, where he was a contemporary of actors such as Jimmi Simpson, David Hornsby, Kathryn Hahn, Justin Long, and Sterling K. Brown. Day went on to play the lead role in the stage play Dead End at the Huntington Theatre in Boston. After graduating, Day worked on small television roles, advertisements, and voiceovers for the Independent Film Channel (IFC), and supplemented his income by waiting tables and answering phones for a telethon. In the early 2000s, he had guest and recurring appearances on television shows such as Law & Order, Third Watch, Reno 911!, and the short-lived sitcom, Luis.

A skilled musician, Day can play the piano, trombone, guitar, and harmonica as well as sing. He has written or improvised most of the songs featured on It's Always Sunny in Philadelphia. In 2023, Day joined American rock band Portugal. The Man during their show at the Hollywood Bowl to perform It's Always Sunny 's "Dayman". In 2001, Day met actress Mary Elizabeth Ellis in a New York City bar. They were already dating in 2004 when they co-starred as incestuous siblings on Reno 911!. Ellis has a recurring role on It's Always Sunny as The Waitress, the object of the unrequited love and obsession for Day's character. The couple married on March 4, 2006. They had their only child, a son, in December 2011. They live in Los Angeles, California. In 2014, Day received an honorary doctorate in performing arts from Merrimack College, where he also delivered that year's keynote address. Day has stated with uncertainty that he is agnostic.

• Year — Title — Role — Notes — Ref. • 2001 — Late Summer — Trevor — Short film • 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) • Pacific Rim — Dr. Newton Geiszler • 2014 — Party Central — Art (voice) — Short film • The Lego Movie — Benny (voice) • Horrible Bosses 2 — Dale Arbus • 2015 — Vacation — Chad • 2016 — The Hollars — Jason • 2017 — Fist Fight — Andrew "Andy" Campbell — Also executive producer • I Love You, Daddy — Ralph • 2018 — Pacific Rim Uprising — Dr. Newton Geiszler • Hotel Artemis — Acapulco • 2019 — The Lego Movie 2: The Second Part — Benny (voice) • 2021 — How It Ends — Lonny • 2022 — I Want You Back — Peter — Also executive producer • 2023 — The Super Mario Bros. Movie — Luigi (voice) • Fool's Paradise — Latte Pronto / Sir Tom Bingsley — Also director and screenwriter • 2025 — Summer of 69 — Rick Richards • Honey Don't! — Marty Metakawich • 2026 — Kill Me — Jimmy — Also producer • The Super Mario Galaxy Movie — Luigi (voice) • Wildwood — Dmitri (voice) — In production • Golf Trip — Unknown — Filming

• Year — Title — Role — Notes — Ref. • 2000 — Mary and Rhoda — Mailroom Kid — Television film • 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 — Charles "Charlie" Kelly — Main cast; Also executive producer and writer • 2011–2012 — How to Be a Gentleman — Consulting producer (8 episodes) • 2011, 2012 — Saturday Night Live — Himself (host), Congressman Fenton Worthington Carrey — Episodes: "Charlie Day/Maroon 5", "Jamie Foxx/Ne-Yo" • 2012 — Unsupervised — Jesse Judge (voice) — Episode: "Jesse Judge Lawncare Incorporated"; Also executive producer (13 episodes) • American Dad! — Meth Head (voice) — Episode: "Adventures in Hayleysitting" • 2014 — Drunk History — Allan Pinkerton — Episode: "Baltimore" • 2018–2019 — The Cool Kids — Chet the handyman — Episode: "Pilot"; Also co-creator, executive producer and writer • 2020–2025 — Mythic Quest — Spencer — Episode: "Rebrand"; Also co-creator and executive producer • 2023 — Bupkis — Glen Rossi — Episode: "Picture" • 2025 — Abbott Elementary — Charlie Kelly — Episode: "Volunteers" Crossover with It's Always Sunny in Philadelphia • Rick and Morty — Salva-tron (voice) — Episode: "Morty Daddy"

• Year — Title — Voice role — Ref. • 2013 — Disney Infinity — Art • 2015 — Lego Dimensions — Benny

• Year — Title — Role — Notes — Ref. • 2021–2023 — The Always Sunny Podcast — Himself/host — 74 episodes

• Year — Title — Artist — Notes — Ref. • 2022 — "If I Didn't Love You" — Ben Abraham — Co-starred with Mary Elizabeth Ellis

• Year — Title — Role — Notes — Ref. • 2016 — The Lego Movie: 4D – A New Adventure — Benny (voice)

• Year — Title — Role — Notes — Ref. • 1997 — Dead End — 2nd Ave Gang #1 • Princess Turandot — The Second Eunuch • Johnny On a Spot — Fred • 1999 — Camino Real — Abdullah • Quark Victory — Newt • 2000 — A Servant of Two Masters — Pantaloon

Charlie Day was recorded at birth as Charles Peckham Day. The authorities additionally record the headings Charles Peckham "Charlie" Day and Charles Peckham Day. His recorded language was English. He was the child of Mary Adelaide Peckham. He married Mary Elizabeth Ellis.

• Illustration — Day at the 2011 San Diego Comic Con In the early years of his career, Day made comedy sketches and absurd short films in his spare time alongside Jimmi Simpson, with whom he was living in New York City, and several friends, including David Hornsby, Nate Mooney, Logan Marshall-Green, and other actors—many of whom they had met through the Williamstown Theatre Festival. These home videos served as the inspiration for several scripted short films he later developed with Rob McElhenney and Glenn Howerton in 2003, once he had moved to Los Angeles. Among these home movies were two scenes about three self-involved, struggling actors in Los Angeles getting into awkward and darkly comedic situations between auditions and jobs, which went on to form the basis of the pilot episode of the comedy series It's Always Sunny in Philadelphia. In 2005, the first season of It's Always Sunny in Philadelphia was released on FX television. In addition to executive producing and writing for the show, Day stars as Charlie Kelly. In 2021, It's Always Sunny became the longest running live-action comedy on American television with the release of its 15th season. The series is still ongoing, with its 18th season in the works as of April 2026. Since November 2021, Day, McElhenney and Howerton have been releasing The Always Sunny Podcast. They set out to rewatch the entire series and share behind-the-scenes information, but the podcast's focus shifted to the banter and dynamic between the three creators. Day has developed and produced several television shows in addition to It's Always Sunny in Philadelphia. In 2011 and 2012, he produced the short-lived comedies How to Be a Gentleman (2011–2012) and Unsupervised (2012), which were created by It's Always Sunny writers David Hornsby, Scott Marder, and Rob Rosell. In 2017, he co-created the Fox sitcom The Cool Kids (2018–2019), starring Vicki Lawrence, Martin Mull, David Alan Grier, and Leslie Jordan, which was set in a retirement community. He served as an executive producer through its first season after which the show was canceled. On August 9, 2019, Mythic Quest, a half-hour comedy series co-created by Day, McElhenney, and Megan Ganz, who is also an executive producer on It's Always Sunny, was announced as one of the original productions for the then-upcoming streaming service, Apple TV+. In addition to being co-creator, Day was an executive producer on Mythic Quest, which aired for four seasons from 2020 to 2025.