Kaitlin Olson reacted to her husband, Rob McElhenney, changing his name to Rob Mac during an interview with PEOPLE at the 'It's Always Sunny in Philadelphia' 20th Anniversary Celebration on July 1. She noted that the change hasn't impacted her life much,

Rob McElhenney’s new last name has high potential. But for his wife and “It’s Always Sunny in Philadelphia” co-star, Kaitlin Olson, she isn’t fazed by the switch-up from McElhenney to “Mac.” The actor filed to legally change his name last week and is waiting for the court to make it official.

Kaitlin Olson opened up about her family's reaction to spouse Rob McElhenney’s name change, saying their kids didn’t take the news well.