Season 4

The fourth season of It's Always Sunny in Philadelphia aired in the fall of 2008 on FX. It ran for 13 episodes. It is available for purchase on DVD or iTunes.

Season Summary
The Gang's schemes get even crazier this season: reselling gasoline door to door, getting healthy and scamming to get health insurance, and having the bar declared a historical landmark. They also kidnap a newspaper critic who writes a negative review of Paddy's.

comes up for parole, so Charlie and Mac fake their deaths to avoid his vengeance.

continues to stalk the Waitress: he attempts to find out who is banging her, and then writes a musical and invites her to attend.

Greed gets the better of them, as they also attempt to prevent Bruce Mathis from donating Barbara Reynolds' assets to a Muslim cultural center.

Cast

 * Main
 * Charlie Day as Charlie Kelly
 * Glenn Howerton as Dennis Reynolds
 * Rob McElhenney as Mac
 * Kaitlin Olson as Deandra Reynolds
 * Danny DeVito as Frank Reynolds


 * Recurring
 * Mary Elizabeth Ellis as The Waitress
 * David Hornsby as Rickety Cricket
 * Artemis Pebdani as Artemis
 * Gregory Cummins as Luther Mac
 * Lynne Stewart as Bonnie Kelly
 * Sandy Martin as Mrs. Mac