Date Of Birth

April 14, 1977


Philadelphia-born Rob McElhenney is known for his role in the FX sitcom It’s Always Sunny in Philadelphia. Incidentally, he is also the program’s creator, director and writer. His initial foray into acting was a struggle; he took on all kinds of acting jobs for several years in order to support himself. Born on April 14, 1977, McElhenney began his career in 1997 with his film debut being a role in The Devil’s Own. He later received bit parts on Law & Order, and on 1998’s A Civil Action. He was next seen on Wonder Boys, as well as on Thirteen Conversations About One Thing.

In 2004, while Rob McElhenney was still waiting tables, his manager and his agent presented his sitcom idea to the FX network. He continued to act, produce and write for It’s Always Sunny in Philadelphia, where he gained the most fame. His portrayal of Mac earned him praise, because the role required him to play a bad-tempered brute, a man loaded with attitude problems. Back in high school, Mac served as the source of marijuana to the other kids. He is presently forced to engage in heroin trafficking through the influence of his father, who is doing time in prison because of drugs. Mac appears to be particular in capturing the attention of women, and constantly worries over how to get to them.

McElhenney was also featured on the third season of the hit series Lost. He was made to appear on “Not in Portland,” since the actor had already befriended Damon Lindelof, the co-creator and executive producer of Lost. Lindelof told him that he was a fan of It’s Always Sunny in Philadelphia, so he offered to give Rob a small role on Lost. Other credits attributed to McElhenney are substantial roles in 2003’s Latter Days and 2004’s The Tollbooth. He was also seen on Long Story Short and on an episode of ER titled “Where There’s Smoke.”

Place of Birth

Philadelphia, Pennsylvania, USA

Birth Name

Rob McElhenney



Fun Facts

– He married Kaitlin Olson on September 27, 2008.

– He lists Avenged Sevenfold, System of a Down, Pink Floyd, Metallica, The Eagles and The Pixies as his favorite bands/artists.

– It takes Rob 11.5 months to write, direct and shoot 15 episodes of It’s Always Sunny In Philadelphia.


2005-2010: It’s Always Sunny in Philadelphia (TV series) – Mac
2007-2010: Lost (TV series) – Aldo
2009: It’s Always Sunny in Philadelphia: A Very Sunny Christmas (video) – Mac
2008: It’s Always Sunny in Philadelphia Season 3: Meet the McPoyles (video short) – Mac
2008: It’s Always Sunny in Philadelphia Season 3: Sunny Side Up (video short) – Mac
2008: It’s Always Sunny in Philadelphia Season 3: Dancing Guy (video short) – Mac
2008: It’s Always Sunny in Philadelphia: Sunny Side Up (video short) – Mac
2004: The Tollbooth – Simon Stanton
2004: ER (TV series) – Andy Fesh
2003: Latter Days – Elder Harmon
2002: Long Story Short – Trent
2001: Campfire Stories – Ricky
2001: Thirteen Conversations About One Thing – Chris Hammond, Aspiring Medical Student
2000: Wonder Boys – Student
1998: A Civil Action – Teenager on Property
1997: Law & Order (TV series) – Joey Timon
1997: The Devil’s Own – Kevin


6′ 2.5″


(On his It’s Always Sunny In Philadelphia character Mac)
-Mac is exceptionally vain, in fact the entire Gang is, Mac works from a pathetic place of insecurity. These people are uneducated, unmotivated and just live to just get one over each other.

(On his meeting with Danny DeVito)
-The meeting was official. But he lived next to Brad Pitt and Jennifer Aniston while they were getting divorced. There were people everywhere taking pictures. Danny didn’t have any stalkers, so I was the one guy stalking Danny.

(On what Rob and the cast think about It’s Always Sunny In Philadelphia)
-We feel we’re amongst the funniest if not the funniest show on television, and let’s see what happens when we go up against the networks.