Glenn Howerton
Biography
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.
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Known For
TV
The Simpsons
Peter Linz (voice)
1989
TV
Family Guy
(voice)
1999
TV
Late Night with Seth Meyers
Self - Guest
2014
TV
American Dad!
Animal Control Guy #1 (voice)
2005
TV
Conan
Self
2010
TV
The Kelly Clarkson Show
Self
2019
TV
Fargo
Don Chumph
2014
TV
The Late Late Show with James Corden
Self - Guest
2015
TV
The View
Self
1997
TV
Jimmy Kimmel Live!
Self
2003
TV
ER
Nick Cooper
1994
TV
It's Always Sunny in Philadelphia
Dennis Reynolds
2005
TV
Abbott Elementary
Dennis
2021
TV
The Mindy Project
Cliff Gilbert
2012
TV
Welcome to Wrexham
Self
2022
TV
The Cleveland Show
2009
TV
Velma
Fred (voice)
2023
TV
A.P. Bio
Jack Griffin
2018
TV
Hot Ones Versus
Self
2024
TV
Snacked
Self
2021
Filmography
2025FilmPaleyLive: It’s Always Sunny in Philadelphia 20th Anniversary Celebration!as Self2025TVSirensas Ethan Corbin II2024TVHot Ones Versusas Self2023TVBlackBerryas Jim Balsillie2023FilmFool's Paradiseas Business Manager2023FilmBlackBerryas Jim Balsillie2023TVVelmaas Fred (voice)2022TVWelcome to Wrexhamas Self2022FilmThe Thief Collectoras Jerry Alter2021TVAbbott Elementaryas Dennis2021FilmHow It Endsas John2021TVSnackedas Self2020FilmArchenemyas The Manager2020FilmMr. Bungle: The Night They Came Homeas Audience2020TVThe Fugitiveas Jerry Conwell2020FilmThe Huntas Richard2019TVThe Kelly Clarkson Showas Self2019TVUnder A Rock with Tig Notaroas Self - Guest2018TVA.P. Bioas Jack Griffin2016FilmOfficer Downeas Dominic2016FilmWhen Pigs Flyas Uncle Al2015TVThe Late Late Show with James Cordenas Self - Guest2014TVFargoas Don Chumph2014TVLate Night with Seth Meyersas Self - Guest2013FilmCoffee Townas Will2012TVThe Mindy Projectas Cliff Gilbert2012TVUnsupervisedas Clint / Dirt (voice)2011FilmA Tribute to Ryan Dunnas Self2011TVVietnam in HDas Don Devore2011FilmEverything Must Goas Gary2010TVConanas Self2009FilmA Very Sunny Christmasas Dennis Reynolds2009TVThe Cleveland Show2009FilmThe Nightman Cometh: Liveas Dennis Reynolds2009TVGlenn Martin, DDS2009FilmCrank: High Voltageas Doctor (uncredited)2008FilmThe Strangersas Mike2008TVFree Radioas Self2006FilmTwo Weeksas Matthew Bergman2006FilmCrankas Hospital Doctor2005FilmSerenityas Lilac Young Tough2005TVIt's Always Sunny in Philadelphiaas Dennis Reynolds2005FilmMust Love Dogsas Michael2005TVAmerican Dad!as Animal Control Guy #1 (voice)2003TVJimmy Kimmel Live!as Self2003FilmE.D.N.Y.as Paul Webster2002TVThat '80s Showas Corey Howard2002FilmMonday Night Mayhemas Dick Ebersol2001TVThe Jobas Young Guy1999TVFamily Guyas (voice)1997TVThe Viewas Self1994TVERas Nick Cooper1989TVThe Simpsonsas Peter Linz (voice)