“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.”

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.

It's Always Sunny in Philadelphia star Glenn Howerton details why he almost quit the show, the rumors surrounding it, and why he stayed.