Seth MacFarlane Peter Griffin , Brian Griffin , Stewie Griffin , Glenn Quagmire , Tom Tucker , Dr. Elmer Hartman , Marty McFly Voice, Executive Producer Alex Borstein Lois Griffin Voice Seth Green Chris Griffin Voice Mila Kunis Meg Griffin Voice Mike Henry Cleveland Brown , John Herbert , Bruce the Performance Artist , O.J. Simpson Voice Patrick Warburton Joe Swanson Voice Adam West Mayor Adam West Guest Voice Lori Alan Diane SImmons Guest Voice Jeff Bergman Homer Simpson Guest Voice Johnny Brennan Mort Goldman Guest Voice Cathy Cahlin Ryan Fred Goldman's Wife Guest Voice Agostino Castagnola Opera Singer Guest Voice Conway Twitty Himself (archive footage) Guest Voice Ralph Garman Additional Voices Guest Voice Reid Bruton Additional Voices Guest Voice Max Burkholder Additional Voices Guest Voice Virenia Lind Additional Voices Guest Voice Danny Smith Additional Voices Guest Voice Alec Sulkin Additional Voices Guest Voice John Viener Additional Voices Guest Voice David Zuckerman Executive Producer Cyndi Tang-Loveland Director James Purdum Director Peter Shin Director