- Seth MacFarlane (Peter Griffin / Brian Griffin / Stewie Griffin / Glenn Quagmire (voice))
- Alex Borstein (Lois Griffin / Tricia Takanawa / Loretta Brown / Barbara Pewterschmidt (voice))
- Mila Kunis (Meg Griffin (voice))
- Seth Green (Chris Griffin (voice))
- Patrick Warburton (Joe Swanson (voice))
- Arif Zahir (Cleveland Brown (voice))
Family Guy — S8E19
Episode: The Splendid Source
Air Date: 2010-05-16
Runtime: 22 min
Overview
Peter, Joe, and Quagmire search for the source of a dirty joke.