• Arnold as The Cat in the Hat
  • Gerald as Sam-I-Am
  • Helga as Sarah Hall-Small
  • Rhonda as Pam-I-Am
  • Sheena as The White-Tufted Floozle Bird
  • Mitzi as Elizabeth
  • Dino Spumoni as Thidwick the Big-Hearted Moose
  • Ernie as Norval the Fish
  • Coach Wittenberg as Sylvester McMonkey McBean
  • Principal Wartz as King Derwin
  • Eugene as Conrad
  • Mr. Simmons as Mack the Turtle
  • Nick as The Grinch
  • Scheck as Vlad Vladikoff
  • Harold as Horton the Elephant
  • Lila as Daisy-Head Mayzie
  • Councilman Gladhand as Yertle the Turtle
  • Sid as The Lorax
  • Chocolate Boy as Young Cat in the Hat
  • and more

See also

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