Glenn Howerton is best known for as the co-creator, star and writer of It's Always Sunny in Philadelphia. However, prior to It's Always Sunny, Howerton has had roles on ER and the short-lived That 80's Show.
Glenn Howerton News
Glenn Howerton will guest star on The Mindy Project. He'll even stick around for multiple Season 2 episodes.
Posted in: Casting News
|Dennis Reynolds||It's Always Sunny in Philadelphia|
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