Cast 21

1. 

   Rob Corddry

   Gary Supernova (voice)

2. 

   Brendan Fraser

   Scorch Supernova (voice)

3. 

   Jessica Alba

   Lena (voice)

4. 

   Steve Zahn

   Hawk (voice)

5. 

   Sarah Jessica Parker

   Kira Supernova (voice)

6. 

   Ricky Gervais

   Mr Bing (voice)

7. 

   Gregg Binkley

   Ralph (voice) (uncredited)

8. 

   Sofía Vergara

   Gabby (voice)

9. 

   Kaitlin Olson

   3D Movie Girl (voice)

10. 

    Ashley Eckstein

    Alien (voice)

11. 

    Craig Robinson

    Doc (voice)

12. 

    Jane Lynch

    Io (voice)

13. 

    George Lopez

    Thurman (voice)

14. 

    Jonathan Morgan Heit

    Kip Supernova (voice)

15. 

    Chris Parnell

    Hammer (voice)

16. 

    William Shatner

    General Shanker (voice)

17. 

    Bob Bergen

    3D Movie Guy (voice)

18. 

    Joshua Rush

    Young Shanker (voice)

19. 

    Doug Abrahams

    Hazmat / Baabian Citizen (voice)

20. 

    Sean Kenin

    Radio Host (voice)

21. 

    Bill Hader

    Announcer (voice) (uncredited)

Crew 16