Glenn Howerton

Glenn Howerton

Acting

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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Filmography

52
PaleyLive: It’s Always Sunny in Philadelphia 20th Anniversary Celebration! PaleyLive: It’s Always Sunny in Philadelphia 20th Anniversary Celebration! 2025 Sirens ★ 6.7 Sirens 2025 Hot Ones Versus ★ 8.8 Hot Ones Versus 2024 Fool's Paradise ★ 4.6 Fool's Paradise 2023 BlackBerry ★ 7.2 BlackBerry 2023 Velma ★ 3.5 Velma 2023 Welcome to Wrexham ★ 7.8 Welcome to Wrexham 2022 The Thief Collector ★ 6.9 The Thief Collector 2022 Abbott Elementary ★ 7.5 Abbott Elementary 2021 How It Ends ★ 4.9 How It Ends 2021 Snacked ★ 10.0 Snacked 2021 Archenemy ★ 5.3 Archenemy 2020 Mr. Bungle: The Night They Came Home ★ 7.0 Mr. Bungle: The Night They Came Home 2020 The Fugitive ★ 6.2 The Fugitive 2020 The Hunt ★ 6.6 The Hunt 2020 The Kelly Clarkson Show ★ 6.4 The Kelly Clarkson Show 2019 Under A Rock with Tig Notaro ★ 6.0 Under A Rock with Tig Notaro 2019 A.P. Bio ★ 6.9 A.P. Bio 2018 Officer Downe ★ 4.4 Officer Downe 2016 When Pigs Fly ★ 4.5 When Pigs Fly 2016 The Late Late Show with James Corden ★ 5.2 The Late Late Show with James Corden 2015 Fargo ★ 8.3 Fargo 2014 Late Night with Seth Meyers ★ 5.2 Late Night with Seth Meyers 2014 Coffee Town ★ 6.4 Coffee Town 2013 The Mindy Project ★ 6.2 The Mindy Project 2012 Unsupervised ★ 6.7 Unsupervised 2012 A Tribute to Ryan Dunn ★ 8.4 A Tribute to Ryan Dunn 2011 Vietnam in HD ★ 7.7 Vietnam in HD 2011 Everything Must Go ★ 6.2 Everything Must Go 2011 Conan ★ 7.2 Conan 2010 A Very Sunny Christmas ★ 8.4 A Very Sunny Christmas 2009 The Cleveland Show ★ 5.9 The Cleveland Show 2009 The Nightman Cometh: Live ★ 9.4 The Nightman Cometh: Live 2009 Glenn Martin, DDS ★ 6.3 Glenn Martin, DDS 2009 Crank: High Voltage ★ 6.1 Crank: High Voltage 2009 The Strangers ★ 6.1 The Strangers 2008 Free Radio Free Radio 2008 Two Weeks ★ 6.1 Two Weeks 2006 Crank ★ 6.7 Crank 2006 Serenity ★ 7.4 Serenity 2005 It's Always Sunny in Philadelphia ★ 8.3 It's Always Sunny in Philadelphia 2005 Must Love Dogs ★ 5.9 Must Love Dogs 2005 American Dad! ★ 7.0 American Dad! 2005 Jimmy Kimmel Live! ★ 5.3 Jimmy Kimmel Live! 2003 E.D.N.Y. ★ 7.0 E.D.N.Y. 2003 That '80s Show ★ 6.1 That '80s Show 2002 Monday Night Mayhem ★ 6.0 Monday Night Mayhem 2002 The Job ★ 6.7 The Job 2001 Family Guy ★ 7.4 Family Guy 1999 The View ★ 4.4 The View 1997 ER ★ 7.8 ER 1994 The Simpsons ★ 8.0 The Simpsons 1989