who voice acts peter griffin?
Seth MacFarlane
entailment
 Seth MacFarlane voices three of the show 's main characters : Peter Griffin , Brian Griffin , and Stewie Griffin . Since MacFarlane had a strong vision for these characters , he chose to voice them himself , believing it would be easier than for someone else to attempt it . MacFarlane drew inspiration for the voice of Peter from a security guard he overheard talking while attending the Rhode Island School of Design . Stewie 's voice was based on the voice of English actor Rex Harrison , especially his performance in the 1964 musical drama film My Fair Lady . MacFarlane uses his regular speaking voice when playing Brian . MacFarlane also provides the voices for various other recurring and one @-@ time @-@ only characters , most prominently those of the Griffins ' neighbor Glenn Quagmire , news anchor Tom Tucker , and Lois ' father , Carter Pewterschmidt . 

entailment
 MacFarlane was cast as four of the show 's main characters : Peter Griffin , Brian Griffin , Stewie Griffin , and Glenn Quagmire . MacFarlane chose to voice these characters himself , believing it would be easier to portray the voices he already envisioned than for someone else to attempt it . MacFarlane drew inspiration for the voice of Peter from a security guard he overheard talking while attending the Rhode Island School of Design . Stewie 's voice was based on the voice of English actor Rex Harrison , especially his performance in the 1964 musical My Fair Lady . MacFarlane uses his regular speaking voice when playing Brian . The voice of Quagmire was inspired by fast @-@ speaking radio advertising spokesmen from the 1950s . MacFarlane also provides voices for various other recurring and one @-@ time characters , including news anchor Tom Tucker and Lois ' father Carter Pewterschmidt . 

contradiction
 Seth Green primarily voices Chris Griffin and Neil Goldman . Green stated that he did an impression of the character Buffalo Bill from the thriller film The Silence of the Lambs during his audition . 

contradiction
 David Shaughnessy as the voice of Sir Didymus , a brave fox knight . 

contradiction
 Johnny Knoxville , star of Jackass , provided his own voice in this episode , and Will Sasso and Camille Guaty guest starred as various characters . The episode 's writer , John Viener , provided the voice of New Brian . Recurring voice actors and writers Kirker Butler , Mark Hentemann , Danny Smith and Alec Sulkin made minor appearances in the episode . 
