As Alvin struggles with nightmares involving werewolves, the school play of Jekyll & Hyde is in jeopardy when the lead, Alvin, is suspended. In an attempt to boost his confidence, the principal suggests Theodore, who's suddenly going through some canine changes.
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Ross Bagdasarian Jr.
Alvin Seville / Simon Seville / Dave Seville (voice)
Janice Karman
Theodore / Brittany / Jeanette / Eleanor (voice)
Maurice LaMarche
Mr. Lawrence Talbot (voice)
Miriam Flynn
Principal Milliken (voice)
Rob Paulsen
Mr. Rochelle (voice)
April Winchell
Madame Raya (voice)
E. G. Daily
Nathan (voice)
Frank Welker
Werewolf Vocal Effects (voice)
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