- Charlie Day (Charlie Kelly)
- Glenn Howerton (Dennis Reynolds)
- Rob Mac (Ronald 'Mac' McDonald)
- Kaitlin Olson (Dee Reynolds)
- Danny DeVito (Frank Reynolds)
It's Always Sunny in Philadelphia — S0E3
Episode: Sunny Side Up Making-Of Featurette
Air Date: 2007-09-04
Runtime: 22 min
Overview
A peak into the creation process of 'It's Always Sunny in Philadelphia.' Includes interviews and a behind the scenes look at how the show is made. Released with Season 01-02 disc set.