Ross Bagdasarian, Jr.
Alvin Seville / Simon Seville / Dave Seville (voice)
Acting
Janice Karman
Theodore / Brittany / Jeanette / Eleanor (voice)
Acting
Maurice LaMarche
Mr. Lawrence Talbot (voice)
Acting
Miriam Flynn
Principal Milliken (voice)
Acting
Rob Paulsen
Mr. Rochelle (voice)
Acting
April Winchell
Madame Raya (voice)
Acting
E. G. Daily
Nathan (voice)
Acting
Frank Welker
Werewolf Vocal Effects (voice)
Acting