Rob McElhenney as Ronald 'Mac' McDonald, Kaitlin Olson as Deandra 'Sweet Dee' Reynolds, Charlie Day as Charlie Kelly, Danny DeVito as Frank Reynolds, and Glenn Howerton as Dennis Reynolds on 'It's ...

Other stars have welcomed their real-life partners as guest stars on the comedy. Season 17 of the long-running FX hit premieres on Wednesday, June 9. If you've watched one episode of It's Always Sunny ...

After 20 years, one might think that Danny DeVito has gotten tired of playing the bumbling and inexplicably indomitable Frank Reynolds in It’s Always Sunny in Philadelphia. After all, how often is it ...

Discover What’s Streaming On: 42 years later, Taxi co-stars Danny DeVito and Carol Kane are showing the world that their chemistry is still there. **Spoiler alert for the Season 17 finale of It’s ...

Jennie Richardson is a TV Features and Lists Writer for Collider, and a graduate student pursuing an MFA in Fiction Writing. In other words, she really loves stories. Season 17 of It's Always Sunny in ...

Glenn Howerton, who stars as the sociopathic Dennis Reynolds in the long-running sitcom “It’s Always Sunny in Philadelphia,” revealed that he once almost left the show, which is currently in Season 17 ...