• Zaphod Beeblebrox as Calvin
  • Dolphin 1 as Hobbes
  • Dolphin 4 as Susie
  • Dolphin 3 as Calvin's Mom
  • Questular Rontok as Calvin's Dad
  • Trillian as Rosalyn
  • Gretchen (from Recess) as Calvin's Teacher
  • Arthur Dent as Calvin's Principal
  • Ford Perfect as Charlie
  • Dolphin 2 as Calvin's Dummy

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