It's Always Sunny in Philadelphia is back for season 17, and it's not the first show Glenn Howerton has been on this year. Check out his other hit.

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

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 ...

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

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

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

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

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

Fans of It’s Always Sunny in Philadelphia may have noticed a tribute to someone not involved with the series at the end of ...

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 ...