Rob McElhenney is a US film and TV actor born in 1977. According to estimate, his net worth stands at $18 Million as on March 2012. Rob was born in Philedelphia, and did his schooling from the Saint Joseph's Preparatory School.

He debuted in film career with a small role in “The Devil’s Own”, and then appeared in several movies like Wonder Boys, Thirteen Conversations About One Thing, and A Civil Action. He also bagged a small role in the 8th season of the television show “Law & Order”. He said that almost all his days are completely packed – such is his demand. Either he is acting, producing or writing script for the show.

He has earned his wealth from the many TV and film appearances. He is most popularly known for portraying the character of Mac on the comedy show - It's Always Sunny in Philadelphia. To prepare for the seventh season of this comic series, he had put on 50 pounds of excess weight and his beard was also grown to give his character a funnier image. However the rest of the cast looked at his weight increase with disgust and in fact many were worried about his health too. Rob however lost 23 pounds in a month, right after the series started getting telecasted.

In his personal life, he was raised by two gay mothers. He got married to Kaitlin Olson in 2008 and they had their first son in 2010. His wife went into labour while they were shooting for the Philadelphia Phillies games. The couple had their second son who was born in 2012.