ois calls Peter an idiot for bringing home the wrong baby after he takes Stewie to the park for some father-son bonding, so he goes to Chicago on a business trip and returns a smart, classy person.
Seth MacFarlane Peter Griffin / Brian Griffin / Stewie Griffin / Glenn Quagmire / Tom Tucker / God / Kool-Aid Guy (voice)
Alex Borstein Lois Griffin (voice)
Mila Kunis Meg Griffin (voice)
Seth Green Chris Griffin (voice)