Alvin Seville / Simon Seville / Dave Seville (voice)
Ross Bagdasarian, Jr.
Theodore / Brittany / Jeanette / Eleanor (voice)
Janice Karman
Mr. Lawrence Talbot (voice)
Maurice LaMarche
Principal Milliken (voice)
Miriam Flynn
Mr. Rochelle (voice)
Rob Paulsen
Madame Raya (voice)
April Winchell
Nathan (voice)
Elizabeth Daily
Werewolf Vocal Effects (voice)
Frank Welker
Music
Mark Watters
Director
Kathi Castillo
Writer
John Loy
Character Designer
Background Designer
Micki Zurcher