It's Always Sunny in Philadelphia S4, E1

Five friends with big egos and small brains are the proprietors of an Irish pub in Philadelphia.

Cast:Charlie Day , Glenn Howerton , Rob McElhenney , Kaitlin Olson , Danny DeVito , Mary Elizabeth Ellis , David Hornsby , Artemis Pebdani , Lynne Marie Stewart , Sandy Martin , David Zdunich , Lance Barber , Andrew Friedman , Gregory Scott Cummins , Jimmi Simpson , Nate Mooney , Michael Naughton , Catherine Reitman