Cast & creator
Glenn Howerton
Best known for The Simpsons, Late Night with Seth Meyers, Family Guy
Glenn Franklin Howerton III (born April 13, 1976) is an American actor of television and film. He is best-known for his role as Dennis Reynolds on FX's It's Always Sunny in Philadelphia (on which he is also a writer and executive producer). He also played Corey Howard on the short-lived 2002 sitcom That '80s Show. Description above from the Wikipedia article Glenn Franklin Howerton, licensed under CC-BY-SA, full list of contributors on Wikipedia.
Also known as: Глен Говертон, Ґленн Говертон
32
film credits
42
television credits
57
1989–2025 · acting roles
6.8
average across scored titles
Signature credits
Known for
Across film & television
Filmography (74)
Showing 74 of 74 credits
The Simpsons
Peter Linz (voice)
1989
Late Night with Seth Meyers
Self - Guest
2014
Family Guy
(voice)
1999
The Kelly Clarkson Show
Self
2019
American Dad!
Animal Control Guy #1 (voice)
2005
Conan
Self
2010
The View
Self
1997
The Late Late Show with James Corden
Self - Guest
2015
Jimmy Kimmel Live!
Self
2003
It's Always Sunny in Philadelphia
Dennis Reynolds
2005It's Always Sunny in Philadelphia
Writer
2005It's Always Sunny in Philadelphia
Director
2005It's Always Sunny in Philadelphia
Executive Producer
2005
Fargo
Don Chumph
2014
ER
Nick Cooper
1994
Abbott Elementary
Dennis
2021
The Mindy Project
Cliff Gilbert
2012
The Cleveland Show
2009
House of Lies
Seth Buckley
2012
Welcome to Wrexham
Self
2022
Hot Ones Versus
Self
2024
A.P. Bio
Jack Griffin
2018A.P. Bio
Co-Executive Producer
2018A.P. Bio
Director
2018
Velma
Fred (voice)
2023
Glenn Martin, DDS
2009
The Hunt
Richard
2020
Crank: High Voltage
Doctor (uncredited)
2009
Snacked
Self
2021
The Strangers
Mike
2008
Crank
Hospital Doctor
2006
The Job
Young Guy
2001
Unsupervised
Clint / Dirt (voice)
2012Unsupervised
Dirt (voice)
2012Unsupervised
Clint (voice)
2012Unsupervised
Producer
2012
Serenity
Lilac Young Tough
2005
Sirens
Ethan Corbin II
2025
Free Radio
Self
2008
That '80s Show
Corey Howard
2002
The Fugitive
Jerry Conwell
2020
BlackBerry
Jim
2023
Vietnam in HD
Don Devore
2011
Must Love Dogs
Michael
2005
Under A Rock with Tig Notaro
Self - Guest
2019
Fool's Paradise
Business Manager
2023
Everything Must Go
Gary
2011
Archenemy
The Manager
2020
How It Ends
John
2021
Monday Night Mayhem
Dick Ebersol
2002
Boldly Going Nowhere
Producer
2008Boldly Going Nowhere
Writer
2008
A Very Sunny Christmas
Dennis Reynolds
2009A Very Sunny Christmas
Executive Producer
2009The Girlfriend
Elliot
The Girlfriend
Screenplay
The Girlfriend
Producer
Officer Downe
Dominic
2016
BlackBerry: The Limited Series
2023
It's Always Sunny in Moscow
Creator
2014
The Nightman Cometh: Live
Dennis Reynolds
2009The Nightman Cometh: Live
Executive Producer
2009
Two Weeks
Matthew Bergman
2006
Mr. Bungle: The Night They Came Home
Audience
2020
A Tribute to Ryan Dunn
Self
2011E.D.N.Y.
Paul Webster
2003Boldly Going Nowhere
Writer
Boldly Going Nowhere
Executive Producer
PaleyLive: It’s Always Sunny in Philadelphia 20th Anniversary Celebration!
Self
2025
Coffee Town
Will
2013
All the Wilderness
Executive Producer
2014
The Thief Collector
Jerry Alter
2022
When Pigs Fly
Uncle Al
2016
The Send-Off
Producer
2022