Charles Peckham Day (born February 9, 1976) is an American actor, musician, television producer and screenwriter best known for playing Charlie Kelly in It's Always Sunny in Philadelphia, as well as for his roles in the Horrible Bosses, Pacific Rim, and The LEGO Movie film series.
He is married to actress Mary Elizabeth Ellis and they have one child.
- Horrible Bosses (2011) as Dale Arbus
- Horrible Bosses 2 (2014)
- Monsters University (2013) as Art
- Pacific Rim (2013) as Newt Geiszler
- Pacific Rim: Uprising (2018)
- The LEGO Movie (2014) as Benny
- Vacation (2015) as Chad
- The Hollars (2016) as Jason
- Fist Fight (2017) as Andy Campbell
- Hotel Artemis (2018) as Acapulco
- I Want You Back (2022) as Peter
- The Super Mario Bros. Movie (2023) as Luigi
- Fool's Paradise (2023) as Latte Pronto (also his Directorial debut)
- Law & Order (2001) as Jeremy (episode: "Swept Away - A Very Special Episode")
- Reno 911! (2004) as Inbred Twin (episode: "Not Without My Mustache")
- It's Always Sunny in Philadelphia (2005-present) as Charlie Kelly
- Saturday Night Live (2011) as Himself (episode: "Charlie Day/Maroon 5")
- Unsupervised (2012) as Jesse Judge (episode: "Jesse Judge Lawncare Incorporated")
- American Dad! (2012) as Meth Head (episode: "Adventures in Hayleysitting")
- Drunk History (2014) as Allan Pinkerton (episode: "Baltimore")
- The Cool Kids (2018) as Chet (episode: "Pilot")
Tropes which apply to him and his work:
- The Cast Showoff: Charlie is well known for his musical talent. Along with his singing voice, he can play piano, guitar and harmonica. He’s also written quite a few songs for Sunny.
- The Danza: The character he plays on It's Always Sunny is also named Charlie.
- No Indoor Voice: A Charlie Day character who doesn't scream half of his lines is a rarity.