Cast 11

1. 

   Grey DeLisle

   Mandy / Castigator (voice)

2. 

   Greg Eagles

   Grim / Sperg (voice)

3. 

   Richard Steven Horvitz

   Billy / Billy's Dad (voice)

4. 

   Vanessa Marshall

   Irwin / Mouse (voice)

5. 

   Dee Bradley Baker

   Alien Moonbeast / Alien Werewolf / Moonthing (voice)

6. 

   Jeff Bennett

   Alien #1 / Rat (voice)

7. 

   Chris Cox

   Meadowberry / Corporal / Postal Slob (voice)

8. 

   Jennifer Hale

   Billy's Mom / Stinky (voice)

9. 

   Tom Kenny

   Dr. Brainiac / Alien Pilot / Wiggly / Waiter (voice)

10. 

    Mr. Lawrence

    Alien #2 (voice)

11. 

    Julian Stone

    Sir Raven (voice)

Crew 6