"I was aching to do other things and so I was starting to feel a little boxed in," the star and co-creator adds.

It was the implication. Glenn Howerton, who stars as the sociopathic Dennis Reynolds in the long running sitcom “It’s Always ...

It's Always Sunny In Philadelphia almost lost one of its main and important cast members after its eleventh season, and fans ...

It’s Always Sunny in Philadelphia Season 6 Episode 3, titled The Gang Buys a Boat, portrays one scene which eventually ...

Glenn Howerton addresses the ongoing 'It's Always Sunny in Philadelphia' fan theory about Dennis Reynolds being a serial ...

Glenn Howerton revealed during PaleyLive's panel for the 20th anniversary of 'It's Always Sunny in Philadelphia' that he ...

You can see Glenn Howerton in It’s Always Sunny in Philadelphia, which is now streaming with a Hulu subscription. The show ...

For a legendary television show that was initially thought to be a short film shot on a digital camcorder by Rob McElhenney, ...

Howerton co-created It’s Always Sunny with co-star Rob McElhenney, reuniting in Season 17, which premieres July 9 with ‘The ...

For the past 19 years, Danny DeVito has played the deranged con artist Frank Reynolds on "It’s Always Sunny in." ...

Plus, Charlie Day and Glenn Howerton tell TheWrap which other sitcom they'd love to cross over with after "Abbott Elementary.

Glenn Howerton is finally weighing in on the It’s Always Sunny in Philadelphia fan theory that his character, Dennis Reynolds ...