The English version of Muzzy features the voices of Willie Rushton, Miriam Margolyes, Susan Sheridan, Derek Griffiths, Jack May and Benjamin Whitrow.
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The first part of the film simply introduces Muzzy (Jack May), Bob (Derek Griffiths), the King (Willie Rushton), the Queen (Miriam Margolyes), Princess Sylvia (Susan Sheridan) and Corvax (Derek Griffiths) and their personalities.