Seth MacFarlane Peter Griffin , Brian Griffin , Stewie Griffin , Dr. Elmer Hartman , Jabba the Griffin , Barnaby , Old Yeller Voice, Executive Producer Alex Borstein Lois Griffin , Additional Voices Voice Seth Green Chris Griffin , Additional Voices Voice Mila Kunis Meg Griffin Voice Mike Henry Cleveland Brown , Broderick Brown Voice Danny Smith Dr. Ling , James Caan , Keenan , Lyle Lovett , Phineus , Quentin Tarantino , Jim Kaplan Guest Voice Matt Weitzman Clerk Guest Voice Gary Cole Warren Fredericks Guest Voice Jay Mohr Logan Guest Voice Nicole Sullivan Girl in a Scavenger Hunt , Cashier Guest Voice Phil LaMarr Additional Voices Guest Voice Wally Wingert Additional Voices Guest Voice David Zuckerman Executive Producer Glen Hill Director Peter Shin Director Pete Michels Director