Always Sunny Season 18 Premieres With Perfect Review Score

The 18th season of Its Always Sunny in Philadelphia premiered Monday, August 17, 2026, at 9 p.m. ET on FXX with a two-episode debut, marking the long-running comedy's return after its 17th season concluded a year earlier. Episodes air weekly through October 12 and stream the following day on Hulu.

The season opens with "Frank Marries a Corpse," in which Frank Reynolds, portrayed by Danny DeVito, faces cold feet ahead of a wedding to a character named Sam, played by Carol Kane. Dee Reynolds, played by Kaitlin Olson, attempts to sabotage the nuptials by enlisting The Waitress, Artemis, and Snail to convince Sam to leave. The second episode, "Dennis and Dee Don't Get Rich," follows the Reynolds twins as they pursue a transfer of wealth, while Charlie, portrayed by Charlie Day, and Frank arrange a memorial for Bonnie during the annual Mummers Parade. Both episodes were directed by Todd Biermann and written by Day.

The season comprises 10 episodes, returning to the format used in Seasons 8 through 14. The previous three seasons each consisted of eight episodes. The series maintains its core cast of Charlie Day, Rob McElhenney, Glenn Howerton, Kaitlin Olson, and DeVito, with returning...