- 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 — S11E17
Episode: Bigfat
Air Date: 2013-04-14
Runtime: 22 min
Overview
Peter, Quagmire and Joe take a trip to Canada. But after Peter gets lost for two months, a feral Peter returns to his family with no ability to communicate intelligently.