It's Always Sunny in Philadelphia
The Nightman Cometh
TV Flash files “The Nightman Cometh” as the last listed hour of season 4 — It's Always Sunny in Philadelphia (2005–present) on FX, season 4, episode 13, aired 2008-11-20, 30 min.
From the desk
How this hour is filed
This leaf is S04E13: listed hour 45 of 181 in the It's Always Sunny in Philadelphia guide, last listed hour of season 4. It aired 2008-11-20 (30 min). The listed hour before it is “The Gang Gets Extreme: Home Makeover Edition” (S04E12). Next is “The Gang Exploits the Mortgage Crisis” (S05E01).

Catalog log
Broadcast listing — not a TV Flash recap.
Charlie puts on a rock opera based on his song "Nightman," and he gets the rest of the gang to help him.
Viewer FAQ
Where does The Nightman Cometh sit in the It's Always Sunny in Philadelphia guide?
S04E13 is listed hour 45 of 181 — last listed hour of season 4, season 4 episode 13.
When did It's Always Sunny in Philadelphia S04E13 air?
The Nightman Cometh aired 2008-11-20 and is listed at 30 minutes.
Do I have to start at season one of Always Sunny?
You can. You can also jump mid-run: the Gang is fractal terrible, and the format stays viciously inventive for a long haul.
In the series
Why this series still plays
Five terrible people, infinite schemes: Charlie, Dennis, Mac, Dee, and Frank reinvent cruelty without redemption as comfort. Rob McElhenney's FX comedy made trash humans into comic purity and then outlasted almost every live-action sitcom. The anti-Friends on purpose — fractal terrible, still formally inventive.
August 4, 2005, FX drops a dive-bar sitcom that would still be extending its season count while the rest of live-action comedy got windowed, buried, or turned into a nostalgia panel. Rob McElhenney's *It's Always Sunny in Philadelphia* — later FXX — is five terrible people, infinite schemes, the anti-*Friends* on purpose. Charlie Day, Glenn Howerton's Dennis, McElhenney's Mac, Kaitlin Olson's Dee, and **Danny DeVito from season two**, the mid-stream casting masterstroke that completes The Gang. Extreme premises,…
Open the It's Always Sunny in Philadelphia package · Season 4 hub
Filed against
- Charlie Day as Charlie Kelly
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- Glenn Howerton as Dennis Reynolds
Glenn Howerton's Dennis Reynolds is It's Always Sunny in Philadelphia's golden-boy monster — five terrible people, infinite schemes, cruelty without redemption as comfort. FX trash humans as comic purity. TV Flash files him as 2000s…
- Rob McElhenney as Mac
Rob McElhenney's Mac made It's Always Sunny in Philadelphia a monument to terrible people with perfect timing — five schemes, no redemption as comfort, FX comedy that outlasted almost every live-action sitcom. The anti-Friends on purpose.…
- Kaitlin Olson as Dee Reynolds
Kaitlin Olson’s Dee Reynolds made It’s Always Sunny in Philadelphia the fifth terrible person — Charlie, Dennis, Mac, Dee, and Frank reinventing cruelty without redemption as comfort. Rob McElhenney’s FX comedy as trash humans into comic…
- Danny DeVito as Frank Reynolds
Danny DeVito’s Louie De Palma tyrannized Taxi’s dispatcher booth like a gargoyle with a time card — 1970s catalog James L. Brooks character comedy, then It’s Always Sunny in Philadelphia recasting the growl as Frank Reynolds’s trash-human…