Glenn Howerton
Biography
Glenn Franklin Howerton III is an American television and film actor, writer, and executive producer born on April 13, 1976. He was born in Okinawa, Japan. He is best known for his role as Dennis Reynolds on the FX series It's Always Sunny in Philadelphia, where he also serves as a writer and executive producer. Additionally, he played the character Corey Howard on the short-lived 2002 sitcom That '80s Show. His professional background includes various credited works in television and film, reflecting an established acting career across multiple productions.
Career overview
Glenn Franklin Howerton III is an American television and film actor born on April 13, 1976. His place of birth is noted as Okinawa, Japan. Throughout his career, he has accumulated known acting credits across various television and film projects.
One of his earliest notable television roles was playing Corey Howard on the short-lived 2002 sitcom That '80s Show. He is best known for his role as Dennis Reynolds on the FX series It's Always Sunny in Philadelphia. In addition to his acting duties on that program, he contributes behind the scenes as both a writer and an executive producer.
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Frequent co-stars
Career timeline
Full filmography
- Sirens (2025) as Ethan Corbin II
- PaleyLive: It’s Always Sunny in Philadelphia 20th Anniversary Celebration! (2025) as Self
- Hot Ones Versus (2024) as Self
- Velma (2023) as Fred (voice)
- BlackBerry (2023) as Jim
- Fool's Paradise (2023) as Business Manager
- Welcome to Wrexham (2022) as Self
- The Thief Collector (2022) as Jerry Alter
- The Send-Off (2022) Producer
- Abbott Elementary (2021) as Dennis
- Snacked (2021) as Self
- How It Ends (2021) as John
- The Hunt (2020) as Richard
- The Fugitive (2020) as Jerry Conwell
- Archenemy (2020) as The Manager
- Mr. Bungle: The Night They Came Home (2020) as Audience
- The Kelly Clarkson Show (2019) as Self
- Under A Rock with Tig Notaro (2019) as Self - Guest
- A.P. Bio (2018) as Jack Griffin
- A.P. Bio (2018) Co-Executive Producer
- A.P. Bio (2018) Director
- Officer Downe (2016) as Dominic
- When Pigs Fly (2016) as Uncle Al
- The Late Late Show with James Corden (2015) as Self - Guest
- Late Night with Seth Meyers (2014) as Self - Guest
- Fargo (2014) as Don Chumph
- It's Always Sunny in Moscow (2014) Creator
- All the Wilderness (2014) Executive Producer
- Coffee Town (2013) as Will
- The Mindy Project (2012) as Cliff Gilbert
- Unsupervised (2012) as Clint (voice)
- Unsupervised (2012) as Clint / Dirt (voice)
- Unsupervised (2012) as Dirt (voice)
- Unsupervised (2012) Producer
- Everything Must Go (2011) as Gary
- Vietnam in HD (2011) as Don Devore
- A Tribute to Ryan Dunn (2011) as Self
- Conan (2010) as Self
- The Cleveland Show (2009)
- Crank: High Voltage (2009) as Doctor (uncredited)
- Glenn Martin, DDS (2009)
- The Nightman Cometh: Live (2009) as Dennis Reynolds
- The Nightman Cometh: Live (2009) Executive Producer
- A Very Sunny Christmas (2009) as Dennis Reynolds
- A Very Sunny Christmas (2009) Executive Producer
- The Strangers (2008) as Mike
- Free Radio (2008) as Self
- Boldly Going Nowhere (2008) Writer
- Boldly Going Nowhere (2008) Producer
- Crank (2006) as Hospital Doctor
- Two Weeks (2006) as Matthew Bergman
- American Dad! (2005) as Animal Control Guy #1 (voice)
- It's Always Sunny in Philadelphia (2005) as Dennis Reynolds
- It's Always Sunny in Philadelphia (2005) Writer
- It's Always Sunny in Philadelphia (2005) Director
- It's Always Sunny in Philadelphia (2005) Executive Producer
- Serenity (2005) as Lilac Young Tough
- Must Love Dogs (2005) as Michael
- Jimmy Kimmel Live! (2003) as Self
- E.D.N.Y. (2003) as Paul Webster
- That '80s Show (2002) as Corey Howard
- Monday Night Mayhem (2002) as Dick Ebersol
- The Job (2001) as Young Guy
- Family Guy (1999) as (voice)
- The View (1997) as Self
- ER (1994) as Nick Cooper
- The Simpsons (1989) as Peter Linz (voice)
- The Girlfriend as Elliot
- The Girlfriend Screenplay
- The Girlfriend Producer