Cast 18

1. 

   Debi Derryberry

   Jimmy Neutron / Alien Actress / Alien Woman (voice)

2. 

   Rob Paulsen

   Carl Wheezer/Mr. Wheezer/Mrs. Wheezer/Test Pilot/Announcer (voice)

3. 

   Jeffrey Garcia

   Sheen Estevez / Army Guard (voice)

4. 

   Frank Welker

   Goddard (voice)

5. 

   Carolyn Lawrence

   Cindy Vortex (voice)

6. 

   Crystal Scales

   Libby Folfax (voice)

7. 

   Tim Allen

   Meldar Prime (voice)

8. 

   Alyssa Milano

   April (voice)

9. 

   Carlos Alazraqui

   Sr. Estevez (voice)

10. 

    Jeff Bennett

    Gorlock #2 / Brain #1 (voice)

11. 

    Megan Cavanagh

    Judy Neutron / Mrs. Vortex (voice)

12. 

    Jim Cummings

    Brain #2 / Mayor Quadar (voice)

13. 

    Mark DeCarlo

    Hugh Neutron / Emergency System / Gen. Abercrombie (voice)

14. 

    Jess Harnell

    Meldar Prime (singing voice)

15. 

    Joe Lala

    Sr. Estevez (voice)

16. 

    Phil LaMarr

    Bolbi Stroganofsky / British Tourist (voice)

17. 

    Billy West

    Sam / Corky Shumatsu (voice)

18. 

    Grey DeLisle

    Vendanna (voice)

Crew 4