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

It's Always Sunny in Philadelphia' costars Rob McElhenney and Kaitlin Olson, who are married in real life, say his ...

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

Amid Ryan Reynolds and Blake Lively's ongoing legal battle with her ‘It Ends With Us’ co-star Justin Baldoni, Rob McElhenney, business partner of Wrexham AFC, supports his friend in the “challenging” ...

Kaitlin Olson and Rob McElhenney spoke with 'Variety' for a recent cover story, opening up about everything from their almost ...

It’s Always Sunny in Philadelphia star Rob McElhenney reveals how he’s supporting his buddy Ryan Reynolds during the ongoing legal feud between Blake Lively and Justin Baldoni. McElhenney told Variety ...

There is something wonderfully gratifying about seeing Hollywood stars break the stereotype of rivalry and become close friends in the public eye.