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 has some significance, at least to McElhenney and his wife, Kaitlin Olson. It's the name of his "Always Sunny in Philadelphia" character, a show that will begin its 17th season in July.

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 ...

Rob McElhenney shares why he’s changing his last name. As actor Rob McElhenney continues to take steps to change his surname, his wife and kids are revealing how they feel about the move.

Kaitlin Olson says her kids are "really not happy" about their dad Rob McElhenney changing his name. The 'It's Always Sunny in Philadelphia' actor filed to legally change his name on June 26.

Rob Mac (center left) with the core cast of “It’s Always Sunny in Philadelphia” including wife Kaitlin Olson (far right). To drive home the “silly” preoccupation with his name change ...

Rob McElhenney shares why he’s changing his last name. As actor Rob McElhenney continues to take steps to change his surname, his wife and kids are revealing how they feel about the move.