• Clarissa Saunders as Sarah Hall-Small
  • Jefferson Smith as The Cat in the Hat
  • Senator Joseph Harrison "Joe" Paine as King Derwin
  • Jim Taylor as Sam-I-Am
  • Governor Hubert "Happy" Hopper as Mack the Turtle
  • "Diz" Moore as Horton the Elephant
  • Chick McGann as Birthday Bird
  • Ma Smith as Joan
  • Senate Majority Leader as Little Cat A
  • Susan Paine as Pam-I-Am
  • Senator MacPherson as The Grinch
  • and more
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