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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|2016-10-01||When Pigs Fly||Uncle Al|
|2009-09-15||The Nightman Cometh: Live||Dennis Reynolds|
|2011-05-13||Everything Must Go||Gary|
|2005-07-21||Must Love Dogs||Michael|
|2002-01-14||Monday Night Mayhem||Dick Ebersol|
|2005-09-03||Serenity||Lilac Young Tough|
|2011-11-28||A Tribute to Ryan Dunn||Himself|
|2009-04-16||Crank: High Voltage||Doctor (uncredited)|