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It's Always Sunny in Philadelphia season 17

The seventeenth season of the American television sitcom series It's Always Sunny in Philadelphia premiered on FXX on July 9 and concluded on August 20, 2025, consisting of eight episodes. Episodes were simulcast on FX and had same night availability on the FXNOW website, and next day availability on Hulu. The season stars Charlie Day, Glenn Howerton, Rob Mac, Kaitlin Olson, and Danny DeVito as "the Gang". In December 2020, after the fourteenth season aired, It's Always Sunny in Philadelphia was renewed for four additional seasons. Filming took place from October to December 2024.

Cast
Main cast Charlie Day as Charlie KellyGlenn Howerton as Dennis ReynoldsRob Mac as Ronald "Mac" McDonaldKaitlin Olson as Deandra "Dee" ("Sweet Dee") ReynoldsDanny DeVito as Frank Reynolds Special guest cast Quinta Brunson as Janine TeaguesSheryl Lee Ralph as Barbara HowardTyler James Williams as Gregory EddieJanelle James as Ava ColemanChris Perfetti as Jacob HillLisa Ann Walter as Melissa SchemmentiWilliam Stanford Davis as Mr. JohnsonBrian Unger as The Lawyer Recurring castMary Elizabeth Ellis as The Waitress Guest cast Alex Wolff as Simon • Audrey Wasilewski as Nurse • Grayson Berry as Sparky • Marlon Young as Louis • David Hornsby as Matthew "Rickety Cricket" Mara • Andrew Friedman as Uncle Jack • Jaimie Alexander as Tammy • Robert Adamson as Trey • Artemis Pebdani as Artemis • Eddie Shin as Moderator Mike • Jesse Palmer as Himself • Audrey Corsa as Cock Chewa • Lynne Marie Stewart as Bonnie Kelly • Carol Kane as Sam == Production ==
Production
Development After the fourteenth season aired, ''It's Always Sunny in Philadelphia was renewed for four additional seasons in December 2020, intending to take it up to season 18. At the 75th Primetime Emmy Awards, series creator and showrunner Rob Mac and Quinta Brunson, the creator and star of the ABC sitcom Abbott Elementary'', began developing a crossover between the two series, which was later approved by the Walt Disney Company CEO Bob Iger. Writing On August 4, 2024, Charlie Day posted on Instagram that the writers' room would start working on the season in the following week. The writing team for the season includes Mac, Day, David Hornsby, Javi Scott, Nina Pedrad, and Keyonna Taylor. Filming According to star Danny DeVito, filming for the season was expected to begin in September 2024. By October 16, it was announced via Instagram that filming had begun. On December 4, it was announced that filming for the season had finished. == Episodes ==
Release
The season premiered with two episodes on July 9, 2025. == Reception ==
Reception
On Rotten Tomatoes, the season has an approval rating of 90% based on 12 reviews. The website's critics' consensus is, "Unlike Paddy's merry band of morons, ''It's Always Sunny in Philadelphia'' remains sharp and spry in its advanced age." ==Notes==
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