As the story goes, Rob first spotted Kaitlin during an episode of Curb Your Enthusiasm. The actress was portraying Becky, Larry’s sister-in-law, when her eventual costar first noticed her on screen.

Add Yahoo as a preferred source to see more of our stories on Google. Kaitlin Olson and Rob McElhenney in 'It's Always Sunny in Philadelphia' - Patrick McElhenney / ©FX / Hulu / Courtesy of FX & HULU ...

It's Always Sunny in Philadelphia's Charlie Day updated Season 18 and shared how they're looking to build on the good vibes from Season 17.

The actor formally known as Rob McElhenney made headlines a little less than a year ago when he revealed he was changing his ...