Robert Dale "Rob" McElhenney (born April 14, 1977) is an American film and television actor best known for his role as Mac on the FX TV series It's Always Sunny in Philadelphia. He is also credited as creator, developer and executive producer of the show, which has also provided McElhenney with writing and directing credits on various episodes. He is married to Kaitlin Olson, who plays Deandra Reynolds on the show. He has also opened a bar in Philadelphia called Mac's Tavern.
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Side Quest
Ian · (1 episode)
2025
Deadpool & Wolverine
TVA Soldier
2024
Hot Ones Versus
Self · (1 episode)
2024
All Town Aren't We
Self · (3 episodes)
2024
Welcome to Wrexham
Self · (49 episodes)
2022
Abbott Elementary
Mac · (1 episode)
2021
Snacked
Self · (1 episode)
2021
Mythic Quest
Ian Grimm · (40 episodes)
2020
The F Word
Self · (1 episode)
2017
The Late Show with Stephen Colbert
Self · (2 episodes)
2015
Hot Ones
Self · (1 episode)
2015
Fargo
Officer Oscar Hunt · (1 episode)
2014
Late Night with Seth Meyers
Self · (1 episode)
2014
The Mindy Project
Lou Tookers · (4 episodes)
2012
All Star Bowling Trick Shots
2012
A Tribute to Ryan Dunn
Self
2011
Game of Thrones
Ironborn #1 · (1 episode)
2011
Conan
Self · (1 episode)
2010
A Very Sunny Christmas
Ronald "Mac" McDonald
2009
The Nightman Cometh: Live
Mac McDonald
2009
It's Always Sunny in Philadelphia
Ronald 'Mac' McDonald · (177 episodes)
2005
The Tollbooth
Simon Stanton
2004
Lost
Aldo · (2 episodes)
2004
Latter Days
Elder Harmon
2004
Jimmy Kimmel Live!
Self · (1 episode)
2003
Campfire Stories
Ricky
2001
Thirteen Conversations About One Thing
Aspiring Medical Student
2001
Wonder Boys
Student
2000
A Civil Action
Teenager on Property
1998
The Devil's Own
Kevin
1997
ER
Andy Fesh · (1 episode)
1994
Law & Order
Joey Timon · (1 episode)
1990