Kaitlin Olson is best known for her long-running role as Dee on It's Always Sunny in Philadelphia, but she also shines in ...

You would think a show like It's Always Sunny in Philadelphia would lose steam after 17 seasons. Instead, it's better than ...

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

“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 ...

Fresh off legally changing his name to Rob Mac, creator and showrunner Rob McElhenney is set on the season 17 premiere of ...

Author Kimberly Potts’ new book out July 1, “It’s (Almost) Always Sunny in Philadelphia: How Three Friends Spent $200 to ...

FX’s It’s Always Sunny in Philadelphia is set to return on July 9, and fans are not only excited to see the new season, but ...

It's Always Sunny in Philadelphia has some absurd stunts by one of the characters, Frank Reynolds, played by Danny DeVito.

Speaking exclusively to PEOPLE at PaleyLive's It’s Always Sunny In Philadelphia 20th Anniversary Celebration in Los Angeles ...

Rob McElheny revealed how the writers of It's Always Sunny's wild Danny DeVito scene came to be, and it's almost as funny as the scene itself.

"We just had a good time ... It was very emotional and really cool," the 'It's Always Sunny in Philadelphia' star tells ...

As Pott’s book title states, the pilot of It’s Always Sunny in Philadelphia only cost stars Rob McElhenney, Glenn Howerton, ...