Glenn Howerton
Acting·April 13, 1976 — 50 years old·Okinawa, Japan
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
Filmography · 57
—The GirlfriendElliot · Screenplay · Producer2025PaleyLive: It’s Always Sunny in Philadelphia 20th Anniversary Celebration!Self2025SirensTVEthan Corbin II2024Hot Ones VersusTVSelf2023Fool's ParadiseBusiness Manager2023BlackBerryJim2023VelmaTVFred (voice)2022Welcome to WrexhamTVSelf2022The Send-OffProducer2022The Thief CollectorJerry Alter2021Abbott ElementaryTVDennis2021How It EndsJohn2021SnackedTVSelf2020ArchenemyThe Manager2020Mr. Bungle: The Night They Came HomeAudience2020The FugitiveTVJerry Conwell2020The HuntRichard2019The Kelly Clarkson ShowTVSelf2019Under A Rock with Tig NotaroTVSelf - Guest2018A.P. BioTVJack Griffin · Co-Executive Producer · Director2016Officer DowneDominic2016When Pigs FlyUncle Al2015The Late Late Show with James CordenTVSelf - Guest2014It's Always Sunny in MoscowTVCreator2014FargoTVDon Chumph2014All the WildernessExecutive Producer2014Late Night with Seth MeyersTVSelf - Guest2013Coffee TownWill2012The Mindy ProjectTVCliff Gilbert2012UnsupervisedTVClint (voice) · Clint / Dirt (voice) · Dirt (voice) · Producer2011A Tribute to Ryan DunnSelf2011Vietnam in HDTVDon Devore2011Everything Must GoGary2010ConanTVSelf2009A Very Sunny ChristmasDennis Reynolds · Executive Producer2009The Cleveland ShowTV2009The Nightman Cometh: LiveDennis Reynolds · Executive Producer2009Glenn Martin, DDSTV2009Crank: High VoltageDoctor (uncredited)2008Boldly Going NowhereTVWriter · Producer2008The StrangersMike2008Free RadioTVSelf2006Two WeeksMatthew Bergman2006CrankHospital Doctor2005SerenityLilac Young Tough2005It's Always Sunny in PhiladelphiaTVDennis Reynolds · Writer · Director · Executive Producer2005Must Love DogsMichael2005American Dad!TVAnimal Control Guy #1 (voice)2003Jimmy Kimmel Live!TVSelf2003E.D.N.Y.Paul Webster2002That '80s ShowTVCorey Howard2002Monday Night MayhemDick Ebersol2001The JobTVYoung Guy1999Family GuyTV(voice)1997The ViewTVSelf1994ERTVNick Cooper1989The SimpsonsTVPeter Linz (voice)