The Gang's Next Act: Where The It's Always Sunny Cast Is Now (2025 Updates)

The "It's Always Sunny in Philadelphia" cast continues to defy all expectations, not only by concluding their record-breaking 17th season in August 2025 but also by expanding their comedic empire with a slew of new, high-profile projects. The Gang—Rob McElhenney, Charlie Day, Glenn Howerton, Kaitlin Olson, and Danny DeVito—are no longer just the narcissistic and sociopathic underachievers of Paddy's Pub; they are creators, producers, and stars of some of the most talked-about series and films of the current year. From a major name change for one star to new network TV deals, the cast is busier than ever, leaving fans to wonder just how long they can keep the longest-running live-action sitcom on the air.

As of December 18, 2025, the future of the series beyond Season 17 remains a dominant topic of discussion, especially following the recent conclusion of the eight-episode run. While the show's dark comedy remains as razor-sharp as ever, the individual success of the core five members is arguably the biggest story in the television landscape, proving that sometimes, the worst people on TV are the best people in Hollywood.

The Complete 'The Gang' Biography and Profile

The success of It's Always Sunny in Philadelphia hinges on the chemistry of its core five actors, who also serve as executive producers and writers (with the exception of Danny DeVito). Here is a complete, up-to-date look at the people behind the characters of Mac, Charlie Kelly, Dennis Reynolds, Sweet Dee Reynolds, and Frank Reynolds.

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• Rob Mac (formerly Robert McElhenney III)
  • Role: Mac (Ronald "Mac" McDonald)
  • Full Name: Robert Mac (Legally filed name change from Robert McElhenney III)
  • Born: April 14, 1977 (Age 48)
  • Birth Place: Philadelphia, Pennsylvania, U.S.
  • Key Update: Rob has officially filed to legally change his name to "Rob Mac," which he will use in his credits moving forward.
• Charlie Day
  • Role: Charlie Kelly
  • Full Name: Charles Peckham Day
  • Born: February 9, 1976 (Age 49)
  • Birth Place: New York City, New York, U.S.
  • Key Update: Continues to co-host the highly popular Always Sunny Podcast with Mac and Dennis.
• Glenn Howerton
  • Role: Dennis Reynolds
  • Full Name: Glenn Franklin Howerton III
  • Born: April 13, 1976 (Age 49)
  • Birth Place: Okinawa, Japan
  • Key Update: Howerton's character is often cited as one of the most complex and unsettling in modern television, embodying the sociopathic elements of The Gang.
• Kaitlin Olson
  • Role: Sweet Dee Reynolds (Deandra Reynolds)
  • Full Name: Kaitlin Willow Olson McElhenney
  • Born: August 18, 1975 (Age 50)
  • Birth Place: Portland, Oregon, U.S.
  • Key Update: She is married to co-star Rob Mac, proving that even a relationship between Dee and Mac is less chaotic than their on-screen dynamic.
• Danny DeVito
  • Role: Frank Reynolds
  • Full Name: Daniel Michael DeVito Jr.
  • Born: November 17, 1944 (Age 81)
  • Birth Place: Neptune Township, New Jersey, U.S.
  • Key Update: The veteran actor and filmmaker joined the show in Season 2 and is credited with saving the series from early cancellation.

The Cast’s Massive 2025 Projects Beyond Paddy’s Pub

The phenomenal success of It's Always Sunny in Philadelphia, which officially became the longest-running live-action sitcom in American television history, has given its stars the freedom to pursue diverse and ambitious side projects. The year 2025 has been particularly explosive for the main cast, with multiple new series and films launching across major networks and streaming platforms.

Rob Mac’s New Identity and Spinoff Empire

Rob Mac (formerly McElhenney) is arguably the busiest member of The Gang. His work extends far beyond playing the religiously conflicted Mac. Following the success of his Apple TV+ series Mythic Quest, Mac launched a new spin-off in March 2025 titled Side Quest, expanding his universe of workplace comedies.

In a surprising personal and professional move, Mac filed to legally change his name to "Rob Mac." This change is reportedly due to the frequent mispronunciation of "McElhenney" and is how he will be credited in future projects, including his ongoing ownership of Wrexham AFC.

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Kaitlin Olson’s High Potential Network Hit

Kaitlin Olson, known for her brilliant portrayal of the abrasive, bird-like Sweet Dee Reynolds, took on a major new role in January 2025. She stars in the new ABC series, High Potential. Olson plays Morgan, a high-IQ cleaning lady who is recruited by the police to help solve crimes. This role showcases Olson’s ability to anchor a major network series, contrasting sharply with her character Dee, but still retaining that signature chaotic energy that fans love. The series has been a major success, putting Olson in the spotlight outside of the FXX universe.

Charlie Day and Glenn Howerton’s Feature Film Dominance

The creative duo of Charlie Day and Glenn Howerton have also been leveraging their time between seasons to dominate the film world.

• Charlie Day’s Upcoming Films: Day has two major feature films slated for 2025. He stars in the dark comedy Honey Don't! and the Hulu film Summer of 69. Day's unique brand of manic energy, perfected as Charlie Kelly, makes him a sought-after lead for high-concept comedies.
• Glenn Howerton’s Netflix Limited Series: Howerton, whose character Dennis Reynolds is the epitome of the show's dark humor, is starring in the Netflix limited series Sirens in 2025. He plays Ethan Corbin, co-starring with Kevin Bacon, demonstrating his range beyond the narcissistic tendencies of his Paddy's Pub alter-ego.

The End of The Gang? Season 17 and The Future

Season 17 of It's Always Sunny in Philadelphia premiered on FXX on July 9, 2025, and concluded on August 20, 2025, with eight episodes. The season maintained the show’s legacy as the longest-running live-action sitcom, but it also reignited the conversation about when The Gang will finally close the doors of Paddy's Pub for good.

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Both Charlie Day and Danny DeVito have recently commented on the show’s eventual end as Season 17 was airing. They have consistently stated that they will continue to make the show as long as they are having fun, the quality remains high, and the network (FXX and streaming on Hulu) continues to support their vision. The cast is acutely aware of the show's legacy and does not want to overstay their welcome, a sentiment that ironically echoes the characters' refusal to leave their miserable existence.

The fact that the cast is successfully launching so many other projects—from Kaitlin Olson's High Potential to Rob Mac's Mythic Quest universe—shows that they do not rely solely on the series for their careers. This freedom is likely what allows them to keep the quality of Sunny so high, as they can return to it with fresh ideas and energy. While no official confirmation for Season 18 has been made as of late 2025, the show's incredible performance and the cast's commitment to The Gang suggest that the next announcement is a matter of "when," not "if."

For now, fans can rewatch Season 17 on Hulu and enjoy the cast's extensive work across other platforms, confirming that the world of It's Always Sunny is bigger and more influential than ever.