rian begins to think he's not so smart when he takes the SAT'S for Meg and gets a low score, so Peter decides to show him the joys of being an idiot.
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)