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Glenn Howerton

Glenn Franklin Howerton III (born April 13, 1976) is an American actor of television and film. His major roles have been as Dennis Reynolds on FX's It's Always Sunny in Philadelphia (on which he is also a writer and executive producer) and as Corey Howard on the short-lived 2002 sitcom That '80s Show.
‘Fargo’ (FX) Interview: Glenn Howerton on Not Playing the Smartest Guy in the Room
Glenn Howerton on His New Mindy Project Gig and Hitting 100 Episodes of Sunny
Glenn Howerton to Lay Down Law on The Mindy Project
It's Always Sunny's Glenn Howerton, Wife Expecting First Child