• George Jetson as Jimmy Neutron
  • Astro the Dog as Goddard
  • Elroy Jetson as Carl Wheezer
  • Mr. Spacely as King Goobot
  • Mr. Cogswell as Ooblar/Elvis Ooblar
  • Mangle Mars as Poultra
  • Skata-Hara as Angelica
  • Mr. Rocket as Cosmo
  • Melissa as Wanda
  • Sam Spacely as Spongebob
  • Harlan as Patrick
  • Mr. Transistor as Squidward
  • Lenny as Mr. Krabs
  • Orbitty as Gary

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