“They were like, ‘We don’t want to end it,'” Howerton recalled his co-stars saying. “And I was like, ‘Oh, well I can’t stop you.’ And then Seasons 13 and 14, I came back as an actor but I wasn’t in the writers room.”

In Wednesday's Season 17 premiere episode of "It's Always Sunny in Philadelphia," the "Abbott Elementary" cast gets to cuss — including the "c-word"!

While the actor and writer has since settled into a groove with the long-running series, there was a point where he was worried the show might have "peaked."

For a legendary television show that was initially thought to be a short film shot on a digital camcorder by Rob McElhenney, It's Always Sunny in Philadelphia has come a long way, reaching truly unimaginable heights.

I had not figured out yet how to stretch myself and be able to do other things that I wanted to do with my career outside of the show,” Howerton explainedNEED TO KNOWGlenn Howerton revealed during PaleyLive's panel for the 20th anniversary of It's Always Sunny in Philadelphia that he almost quit the show in 2018He said that being an actor,

Howerton co-created It’s Always Sunny with co-star Rob McElhenney, reuniting in Season 17, which premieres July 9 with ‘The Gang F***s Up Abbott Elementary’, the second half of the show’s two-part crossover event with ABC’s Abbott Elementary.

Glenn Howerton, longtime co-star of hit series “It’s Always Sunny in Philadelphia,” recently revealed why he almost exited the show. In an “It’s Always Sunny” 20th anniversary celebration in New York City Tuesday, Howerton said that he “wanted to quit” as he feared the show had peaked ahead of its 12th season.