2000 · 6.9 TMDB · Family, Fantasy, Comedy, Animation, Music
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))