Top Billed Cast

1. 

   Max Records

   Max

2. 

   Catherine Keener

   Mom

3. 

   James Gandolfini

   Carol (voice)

4. 

   Lauren Ambrose

   KW (voice)

5. 

   Catherine O'Hara

   Judith (voice)

6. 

   Forest Whitaker

   Ira (voice)

7. 

   Chris Cooper

   Douglas (voice)

8. 

   Paul Dano

   Alexander (voice)

9. 

   Spike Jonze

   Bob (voice) / Terry (voice)

10. 

    Pepita Emmerichs

    Claire

11. 

    Mark Ruffalo

    The Boyfriend

12. 

    Max Pfeifer

    Claire's Friend

13. 

    Madeleine Greaves

    Claire's Friend

14. 

    Joshua Jay

    Claire's Friend

15. 

    Ryan Corr

    Claire's Friend

16. 

    Steve Mouzakis

    Teacher

17. 

    Michael Berry Jr.

    The Bull (voice)

18. 

    Vincent Crowley

    Carol Suit Performer

19. 

    Sonny Gerasimowicz

    Alexander Suit Performer

20. 

    Nick Farnell

    Judith Suit Performer

21. 

    Sam Longley

    Ira Suit Performer

22. 

    Angus Sampson

    The Bull Suit Performer

23. 

    Mark McCracken

    The Bull Additional Suit Performer

24. 

    John Leary

    Douglas Suit Performer

25. 

    Alice Parkinson

    KW Suit Performer

26. 

    Garon Michael

    KW Additional Suit Performer

27. 

    James Epinfaniou

    Additional Max Performer

28. 

    Joshua Evans

    Additional Max Performer

29. 

    Tess Grimshaw Lloyd

    Additional Max Performer

30. 

    Lucas Haynes

    Additional Max Performer

31. 

    Nathan Veal

    Additional Max Performer

32. 

    Skyler Brigmann

    Double: Max (uncredited)

33. 

    Kalia Prescott

    Max's Classmate (uncredited)