Alvin Seville / Simon Seville / Dave Seville (voice) (as Ross Bagdasarian)
Theodore / Brittany / Jeanette / Eleanor (voice)
Mr. Lawrence Talbot (voice)
Principal Milliken (voice)
Mr. Rochelle (voice) (as Rob Paulson)
Madame Raya (voice)
Nathan (voice) (as E.G. Daily)
Werewolf Vocal Effects (voice)
Miss Miller (voice) (uncredited)
Various Voices (uncredited)