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

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

It’s Always Sunny in Philadelphia isn’t exactly the kind of series that gets noticed for its scenery, but the city slowly ...

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

In this clip from FXX's It's Always Sunny in Philadelphia Season 17 opener, Charlie isn't happy with the current state of ...

FX's It’s Always Sunny in Philadelphia is one of the longest-running American sitcoms in the USA now. The show debuted with ...

For 20 years the cast of It's Always Sunny in Philadelphia has been offering laughs to FX viewers while taking on some of the ...

He’s paying the troll toll. Creator and star of “It’s Always Sunny in Philadelphia” Rob McElhenney opened up in a snarky ...

The kids are really not happy about it, because they have that last name. And so do I, legally!,” his co-starring wife ...

Rob Thomas, Sinbad, Wade Boggs, Jason Kelce, Bryan Cranston, Aaron Paul, Richard Grieco, and Scott Bakula. These are all ...

Kaitlin Olson reacted to her husband, Rob McElhenney, changing his name to Rob Mac during an interview with PEOPLE at the 'It ...

McElhenney’s wife, It’s Always Sunny co-star Kaitlin Olson, has shared that their two sons were less enthusiastic about the ...