Rob McElhenney, creator, writer, producer, director and star of FX’s smash-hit sitcom It’s Always Sunny in Philadelphia, ...

Kaitlin Olson and Rob McElhenney may have played blunt characters on It's Always Sunny in Philadelphia, but in reality, they ...

Let’s face it — you’ve probably been calling him “Mac” this whole time anyway. Rob McElhenney, the longtime star of It’s Always Sunny in Philadelphia, is making it official.

The 17th season premiere of “It’s Always Sunny in Philadelphia” will air on July 9. “The kids are really not happy about it, because they have that last name.

Season 17, Episode 2 of “It’s Always Sunny.” Patrick McElhenney/FX Despite Olson being on board now, his wife of 17 years, with whom he shares kids Axel, 14, and Leo, 13, was initially wary.

Rob McElhenney has had much success in TV under that name. Now it’s time for a new era of Rob — Rob Mac. McElhenney, co-creator of the long-running comedy series “It’s Always Sunny in ...

Rob McElhenney, star of “It’s Always Sunny in Philadelphia,” has filed to legally change his name to Rob Mac. McElhenney, 48, said he made the move to simplify pronunciation as his career ...

The star of "It's Always Sunny in Philadelphia" and co-creator of "Welcome to Wrexham" said too many people were mispronouncing his name. Mac signed the paperwork in Los Angeles on Thursday.