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

Rob McElhenney’s new last name has high potential. But for his wife and “It’s Always Sunny in Philadelphia” co-star, Kaitlin ...

Rob McElhenney and Kaitlin Olson met on the set of 'It's Always Sunny in Philadelphia' in 2006. They're now married and share two sons. Here's a complete timeline of their relationship.

Rob McElhenney and his wife Kaitlin Olson debunk cheating rumors with humor, proving their 17-year marriage remains strong.

"I'm legally Olson McElhenney, but I go by Olson, so I don't really have to change anything," she tells PEOPLE of her husband ...

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

Kaitlin Olson and Rob McElhenney' s two children are "not happy" with their dad after he legally changed his name. The It's ...

Rob Mac signed documents to legally change his name on June 26, shortening it from Rob McElhenney. The It's Always Sunny in ...

At the time, McElhenney's wife, actress Kaitlin Olson, 49, shared that the couple's two kids — Axel, 14, and Leo, 13 — were ...

Rob McElhenney is tired of having so many syllables in his last name. He filed legal documents in Los Angeles to officially ...

The 48-year-old actor was recently reported to be legally changing his moniker to Rob Mac after years of fans mispronouncing his surname, and now he's defended the decision. In a tongue in cheek video ...

Rob McElhenney's wife, Kaitlin Olson, ... At the time, McElhenney's wife, actress Kaitlin Olson, 49, shared that the couple's two kids — Axel, 14, and Leo, 13 — were not happy about the change.