TV It's Always Sunny in Philadelphia - Season 18 It's Always Sunny in Philadelphia - Season 18 8.3/10 by 1385 users Four egocentric friends run a neighborhood Irish pub in Philadelphia and try to find their way through the adult world of work and relationships. Unfortunately, their warped views and precarious judgments often lead them to trouble, creating a myriad of uncomfortable situations that usually only get worse before they get better. Details Casts Posters Images Title It's Always Sunny in Philadelphia - Season 18 Alternative Titles 酒吧五杰, It’s Always Sunny, Always Sunny, FX's Sunny Subtitle Available ETC. First Air Date 2005-08-04 Last Air Date 2026-08-17 Number of Episodes 187 Number of Seasons 18 Genres Comedy, Networks FX, Hulu, FXX, Casts Charlie Day, Glenn Howerton, Rob Mac, Kaitlin Olson, Danny DeVito Plot Keywords , Charlie Kelly Charlie Day Dennis Reynolds Glenn Howerton Ronald 'Mac' McDonald Rob Mac Dee Reynolds Kaitlin Olson Frank Reynolds Danny DeVito Episodes List It's Always Sunny in Philadelphia Season 18 :Episode 1 Frank Marries a Corpse 2026-08-17 Four egocentric friends run a neighborhood Irish pub in Philadelphia and try to find their way through the adult world of work and relationships.... It's Always Sunny in Philadelphia Season 18 :Episode 2 Dennis and Dee Don't Get Rich 2026-08-17 Four egocentric friends run a neighborhood Irish pub in Philadelphia and try to find their way through the adult world of work and relationships.... It's Always Sunny in Philadelphia Season 18 :Episode 3 The Gang Gets Tested 2026-08-24 Four egocentric friends run a neighborhood Irish pub in Philadelphia and try to find their way through the adult world of work and relationships.... It's Always Sunny in Philadelphia Season 18 :Episode 4 2026: A Virtual Insanity 2026-08-31 Four egocentric friends run a neighborhood Irish pub in Philadelphia and try to find their way through the adult world of work and relationships.... It's Always Sunny in Philadelphia Season 18 :Episode 5 The Gang Goes to the Ren Faire 2026-09-07 Four egocentric friends run a neighborhood Irish pub in Philadelphia and try to find their way through the adult world of work and relationships.... It's Always Sunny in Philadelphia Season 18 :Episode 6 The War on Alcohol 2026-09-14 Four egocentric friends run a neighborhood Irish pub in Philadelphia and try to find their way through the adult world of work and relationships.... It's Always Sunny in Philadelphia Season 18 :Episode 7 Episode 7 2026-09-21 Four egocentric friends run a neighborhood Irish pub in Philadelphia and try to find their way through the adult world of work and relationships.... It's Always Sunny in Philadelphia Season 18 :Episode 8 Episode 8 2026-09-28 Four egocentric friends run a neighborhood Irish pub in Philadelphia and try to find their way through the adult world of work and relationships.... It's Always Sunny in Philadelphia Season 18 :Episode 9 Episode 9 2026-10-05 Four egocentric friends run a neighborhood Irish pub in Philadelphia and try to find their way through the adult world of work and relationships.... It's Always Sunny in Philadelphia Season 18 :Episode 10 Episode 10 2026-10-12 Four egocentric friends run a neighborhood Irish pub in Philadelphia and try to find their way through the adult world of work and relationships....