Nicktoons/Captain Underpants

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  • Jimmy Neutron & Timmy Turner As Gerorge & Harold
  • The Chief As Mr. Krupp/Captain Underpants
  • Baby Spongebob As Billy Hoskins/Super Diaper Baby
  • Goddard As Diaper Dog
  • Sheen & Dudley Puppy As Ook & Gulk
  • Baby Yoshi As Lilly
  • Normal Yoshi As Mog-Mog
  • Asfeea As Lan
  • Kitty Katswell As Gak
  • Jimmy's Evil Baby Cousin As Dr. Diaper
  • Professer Z (Cars 2) As The Turbo Toilet 2000
  • Anti Cosmo, Anti Wanda, & Foop As Zork, Klax, & Jennifer
  • Mr. Crocker As Proffesr Poopy Pants
  • Ms. Vowel/Monster Vowel As Mrs. Ribble/Wedgie Woman
  • Alfred E. Neuman (MAD) As Melvin/Bionic Booger Boy
  • Plakton As Deputy Doo-Doo
  • Manray As Rip Van Tinkle
  • Bad Dog As Petey
  • Dorkus As Big Chief Goppernopper
  • Pinter As Goppernopper's Guards

Any More Ideas?

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