Igor

John Cusack

Igor (voice)

Myleene Klass

Dr. Holzwurm (voice)

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Robin Walsh

Dr. Holzwurm's Igor (voice)

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Matt McKenna

Dr. Herzschlag (voice)

John Cleese

Dr. Glickenstein (voice)

Steve Buscemi

Scamper (voice)

Sean Hayes

Brain (voice)

Eddie Izzard

Dr. Schadenfreude (voice)