Currently available on 2 streaming services.

Streaming, rent, or buy It's Always Sunny in Philadelphia – Season 1:

Currently you are able to watch "It's Always Sunny in Philadelphia - Season 1" streaming on Disney Plus, TV 2 Play.

Cast

Charlie Day
Charlie Kelly
Glenn Howerton
Dennis Reynolds
Rob McElhenney
Ronald 'Mac' McDonald
Kaitlin Olson
Deandra 'Dee' Reynolds
Danny DeVito
Frank Reynolds