It's Always Sunny in Philadelphia

Rob Mac stars as "Mac" in the critically-acclaimed FXX original series It’s Always Sunny in Philadelphia. He also serves as creator, showrunner, writer and executive producer of the show.

Career Highlights

Emmy-winner Rob Mac is the creative force behind “It’s Always Sunny in Philadelphia,” the critically acclaimed FX comedy series in which he co-stars and serves as an executive producer and writer. In 2020, following the 14th season airing, it was announced that the series was renewed for four additional seasons, shattering the record as the longest-running live-action television sitcom in history. “Sunny” has been positioned as a cultural juggernaut on a global scale for its unapologetic satirizing of human nature – consistently delivering record-breaking ratings year after year. Most recently, The Gang can be seen in the “Abbott Elementary” and “It’s Always Sunny in Philadelphia” crossover event which debuted in the fourth season of “Abbott Elementary” in January 2025. The second part of the fan-favorite crossover was released as part of the 17th season of “Sunny” in July 2025.It was recently announced that Mac will be executive producing and starring in FX’s “Far Cry” with Noah Hawley also set to executive produce. The series is based on Ubisoft’s global hit video game franchise.In 2021, FX placed a two-season order for “Welcome to Wrexham,” a docuseries tracking the dreams and people of Wrexham, a working-class town in North Wales, as Mac and his business partner Ryan Reynolds take ownership of the town’s historic football club. The year prior, Mac and Reynolds teamed up to take over chairman duties of the football club, in hopes to turn the organization into an underdog story the entire world could root for. Under the helm of Mac and Reynolds, the team recently advanced to the EFL Championship League – marking the first time in English football history a team has been promoted to achieve three consecutive promotions. The inaugural season was beloved by critics and audiences worldwide and won five Emmy Awards including Outstanding Unstructured Reality, the coveted Critics Choice Documentary Award in 2022 and most recently a Critics Choice Real TV Award in 2025. “Welcome to Wrexham” recently released its Emmy award-winning fifth season and landed a three-season renewal with FX.Additionally, Mac also executive produced and appeared in FX and Disney+ Latin America’s docuseries, “Necaxa.” The bilingual docuseries follows Mac, Ryan Reynolds and Eva Longoria’s newest football venture, the Aguascalientes, Mexico-based Club Necaxa as the club goes through turbulent, transformational time marked by staff shake-ups, career-defining injuries and the relentless grit of a football team determined to defy expectations and deliver hope to its city. The series was released in August 2025.Mac is also the creator, executive producer and star of “Mythic Quest,” the acclaimed comedy series that debuted on Apple TV in February 2020. The series, which is co-created by Megan Ganz and Charlie Day and is a co-production of Ubisoft and Lionsgate Television, is set in the development studio of one of the most popular video games in the world. Since its launch, “Mythic Quest” has been lauded by critics and audiences and is recognized among fans as one of the best comedies on television. The series released its fourth and final season in January 2025.Mac, alongside Charlie Day and Glenn Howerton, founded Four Walls Irish American Whiskey as a tribute to the four walls that bring people together – the bar – where their own friendship story has been shared with fans on their hit TV series. Launched first as a limited release with proceeds supporting nonprofits for the bartending community, Four Walls is now available online and expanding quickly across the U.S.A native of Philadelphia, Mac started his career working as an actor in small parts on the East Coast until moving to Los Angeles. It was there he connected with Glenn Howerton (who co-wrote the series) and reconnected with Day (the two met on the 2001 horror movie “Campfire Stories”) and the three filmed the pilot for “Sunny” on a camcorder.

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Rob McElhenney stars as "Mac" in the critically-acclaimed FXX original series It’s Always Sunny in Philadelphia. He also serves as creator, writer and executive producer of the show.

Rob McElhenney headshot wearing a white and grey shirt inside of Paddy's pub.

Rob McElhenney as Mac | Always Sunny on FXX

It's Always Sunny in Philadelphia

Rob Mac

Career Highlights

Charlie Day
as Charlie / Executive Producer / Writer

Glenn Howerton
as Dennis / Executive Producer / Writer

Kaitlin Olson
as Dee

Rob McElhenney as Mac | Always Sunny on FXX

Rob Mac

Glenn Howertonas Dennis / Executive Producer / Writer

Kaitlin Olsonas Dee

Glenn Howerton
as Dennis / Executive Producer / Writer

Kaitlin Olson
as Dee