Rob McElhenney has chosen to go by Rob Mac publicly, and Kaitlin Olson reveals how she feels about this change.

In a one-minute video he posted earlier in the week, he announced he's changing his name to ... Rob Mac. It'll be "mostly" a ...

It's Always Sunny in Philadelphia has some absurd stunts by one of the characters, Frank Reynolds, played by Danny DeVito.

Rob McElheny revealed how the writers of It's Always Sunny's wild Danny DeVito scene came to be, and it's almost as funny as the scene itself.