Costar Glenn Howerton, who lived with McElhenney, said Olson would suddenly be too drunk and need to stay over.

There are some seasons where we’re like ‘oh, I can’t do this anymore.’ But there are other seasons where everyone is just ...

It's Always Sunny in Philadelphia's Rob McElhenney and Kaitlin Olson are a real Hollywood power couple, and here's why.

When It’s Always Sunny in Philadelphia and Abbott Elementary crossed over earlier this year, the episode turned out to be a ...

In a profile interview from earlier today, It's Always Sunny in Philadelphia creator Rob McElhenney explained why he now goes by "Rob Mac." ...

As has been shown time and time again across the many seasons of It’s Always Sunny In Philadelphia, Dennis, Dee, Mac, Charlie and Frank are terrible people. We meet Art Sloan in Season 5’s “The Gang ...

Without a doubt, It’s Always Sunny in Philadelphia is one of the most ingenious ... They dive in. Plus, seeing Mac and Charlie pretend to be pseudo-priests is iconic. They’re not even doing ...

Rob McElhenney says he’s considering switching to a shorter last name. The "It’s Always Sunny in Philadelphia" star — who ...

Behind Danny DeVito's infamous stunt was the miracle of life that inspired the It's Always Sunny in Philadelphia team.

The Gang's looking a little "cheesy" in the official poster for FXX's It's Always Sunny in Philadelphia Season 17, premiering on July 9th.

However, one party who's not happy with the decision: Kaitlin and their two sons, Axel, 14, and Leo, 13. "The kids are really not happy about it, because they have that last name," she said, adding: ...