Charles Peckham Day (born February 9, 1976) is an American actor, writer, and producer. He is best known for playing Charlie Kelly on the FX dark comedy It's Always Sunny in Philadelphia (2005–present), which he stars with Rob McElhenney, Kaitlin Olson, Glenn Howerton and Danny DeVito, and he is also a writer and an executive producer. In 2011, he was nominated for a Critics' Choice Television Award and a Satellite Award for the role. He subsequently co-created the Fox sitcom The Cool Kids (2018–2019) with Paul Fruchbom and the Apple TV+ comedy Mythic Quest (2020–2025) with McElhenney and Megan Ganz. In film, Day is best known for his performances as biologist Dr Newton Geiszler in Guillermo del Toro's science-fiction monster movie Pacific Rim (2013) and its sequel Pacific Rim Uprising (2018), Dale Arbus in the comedy Horrible Bosses (2011) and sequel Horrible Bosses 2 (2014), and teacher 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 the Nintendo franchise character Luigi in The Super Mario Bros. Movie (2023). He made his directorial debut with Fool's Paradise in 2023. Description above from the Wikipedia article Charlie Day, licensed under CC-BY-SA, full list of contributors on Wikipedia.
The Super Mario Bros. Movie
(Luigi (voice))
Going the Distance
(Dan Grant)
Monsters University
(Art (voice))
A Very Sunny Christmas
(Charlie Kelly)
The Saint of Second Chances
(Mike Veeck)
A Quiet Little Marriage
(Adam)
Pacific Rim
(Dr. Newton Geiszler)
Horrible Bosses
(Dale Arbus)
Campfire Stories
(Joe)
The Lego Movie
(Benny (voice))
Horrible Bosses 2
(Dale Arbus)
Mary and Rhoda
(Mailroom Kid)
Party Central
(Art (voice))
Emmet's Holiday Party: A LEGO Movie Short
(Benny (voice))
Kill Me
(Jimmy)
Love Thy Neighbor
(Video Clerk)
Vacation
(Chad)
Wildwood
((voice))
The Hollars
(Jason)
Fist Fight
(Andy Campbell)
Late Summer
(Trevor)
Summer of 69
(Rick Richards)
The Nightman Cometh: Live
(Charlie Kelly)
Pacific Rim: Uprising
(Dr. Newton Geiszler)
Hotel Artemis
(Acapulco)
I Love You, Daddy
(Ralph Kinder)
The Lego Movie 2: The Second Part
(Benny (voice))
Fool's Paradise
(Latte Pronto)
I Want You Back
(Peter)
The Emmet Awards Show!
(Benny (voice / uncredited / archive footage))
How It Ends
(Lonny)
Honey Don't!
(Marty Metakawitch)
The Super Mario Galaxy Movie
(Luigi (voice))
The Super Mario Bros. Movie: Replayed
(Luigi (archive sound))
Third Watch
(Michael Boscorelli)
It's Always Sunny in Philadelphia
(Charlie Kelly)
Madigan Men
Luis
(Richie)
Saturday Night Live
(Self - Cameo (uncredited))
American Dad!
(Jon (Voice))
Unsupervised
(Jesse Judge (Voice))
Reno 911!
(Inbred Twin)
Bupkis
(Glen Rossi)
The Late Show with Stephen Colbert
(Self)
The View
(Self - Guest)
Hot Ones
(Self)
Welcome to Wrexham
(Self)
The Kelly Clarkson Show
(Self)
The Cool Kids
(Chet the Handyman)
Law & Order
(Jeremy)
Snacked
(Self)
Raw
(Self)
Saturday Night Live
(Self - Host)
The Tonight Show Starring Jimmy Fallon
(Self)
Conan
(Self)
Lie Detector
(Self)
Abbott Elementary
(Charlie)
Mythic Quest
(Spencer)
Hot Ones Versus
(Self)
Jimmy Kimmel Live!
(Self)
Rick and Morty
(Salva-tron (voice))
Free Radio
(Self)
Kill Me
(Producer)
I Want You Back
(Executive Producer)
Fist Fight
(Executive Producer)
A Very Sunny Christmas
(Writer)
A Very Sunny Christmas
(Executive Producer)
The Nightman Cometh: Live
(Writer)
For the Safety of Theo
(Executive Producer)
Fool's Paradise
(Director)
Fool's Paradise
(Writer)
Boldly Going Nowhere
(Writer)
Boldly Going Nowhere
(Producer)
It's Always Sunny in Philadelphia
(Writer)
Unsupervised
(Producer)
The Cool Kids
(Executive Producer)
The Cool Kids
(Writer)
Mythic Quest
(Executive Producer)
Mythic Quest
(Writer)
It's Always Sunny in Philadelphia
(Executive Producer)
Side Quest
(Executive Producer)
Side Quest
(Original Series Creator)
The Cool Kids
(Creator)
Mythic Quest
(Creator)