With 17 seasons (and one more under contract), the dark comedy has been on the air since 2005, following Charlie ( Charlie Day ), Dee ( Kaitlin Olson ), Dennis (Glenn Howerton), Mac ( Rob McElhenney ) ...

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 ...

Not to mention, while “A Very Sunny Christmas” aired after Season 6 finished its run, it was actually the first episode ...

The longest running live-action American sitcom rolls into its 17th season next week when The Gang gets back together on "It's Always Sunny in Philadelphia." The season premiere sees the unhinged ...