Kaitlin Olson & Rob McElhenney Welcome Son: Axel Lee!

The It’s Always Sunny in Philadelphia family has expanded!

Costars Kaitlin Olson and Rob McElhenney welcomed their first child, son Axel Lee McElhenney, at 12:52 p.m. on Wednesday, September 1 at their California home, their rep confirms with Celebrity Baby Scoop.

I went into labor at the Phillies/Dodgers game on Tuesday night," says Olson. "As soon as Ryan Howard hit a three-run home run, we felt comfortable leaving to go have our baby. We love him like crazy, even though he made us miss the second half of the game."

The 35-year-old actress recently talked about her plans for a home birth.

"I decided on a home birth because I believe that as long as a pregnancy is normal and complication-free, your body knows what to do and does not need medical intervention. I think the key to having a baby naturally is being able to completely relax and get out of the way of your body’s ability to get the job done."

The FX cult comedy hit, which McElhenney created and executive produces, is set to return for its sixth season on September 16.

Congratulations to the Olson-McElhenney family!