Top Billed Cast

1. 

   John Cusack

   Igor (voice)

2. 

   Myleene Klass

   Dr. Holzwurm (voice)

3. 

   Robin Walsh

   Dr. Holzwurm's Igor (voice)

4. 

   Matt McKenna

   Dr. Herzschlag (voice)

5. 

   John Cleese

   Dr. Glickenstein (voice)

6. 

   Steve Buscemi

   Scamper (voice)

7. 

   Sean Hayes

   Brain (voice)

8. 

   Eddie Izzard

   Dr. Schadenfreude (voice)

9. 

   Jay Leno

   King Malbert (voice)

10. 

    Jennifer Coolidge

    Jaclyn / Heidi (voice)

11. 

    Molly Shannon

    Eva (voice)

12. 

    James Lipton

    Himself

13. 

    Christian Slater

    Dr. Schadenfreude's Igor (voice)

14. 

    Arsenio Hall

    Carl Cristall (voice)

15. 

    Jess Harnell

    Announcer / Royal Guard #2 (voice)

16. 

    Zoë Bright

    Blind Woman / Killiseum Fan #1 (voice)

17. 

    Sophia Eraklis

    Blind Orphan #1 (voice)

18. 

    A. Cheron Hall

    Blind Orphan #2 / Blind Orphan #4 (voice)

19. 

    Alexander Leondis

    Blind Orphan #3 (voice)

20. 

    Michael Leondis

    Blind Orphan #6 (voice)

21. 

    Nicole Leondis

    Blind Orphan #7 (voice)

22. 

    Juliana Leondis

    Blind Orphan #5 (voice)

23. 

    Robin Tisserand

    Blind Orphan #8 (voice)

24. 

    Paul Vogt

    Buzz Offmann (voice)

25. 

    Frank Welker

    Animals' vocal effects (voice) (uncredited)