• 
  Phil Nibbelink

  regizor

• 
  John Patrick Shanley

  scenarist

• 
  John Goodman

  Rex (voce)
• 
  Rhea Perlman

  Mama Pasare (voce)
• 
  Blaze Berdahl

  Buster (voce)
• 
  Yeardley Smith

  Cecilia (voce)
• 
  Jay Leno

  Vorb (voce)
• 
  Larry King

  el însuși (voce)

• 
  Martin Short

  Stubbs the Clown
• 
  Charles Fleischer

  Dweeb
• 
  J.D. Daniels

  Voci adiţionale
• 
  Kenneth Mars

  Professor Screweyes
• 
  Walter Cronkite

  Captain Neweyes
• 
  Julia Child

  Dr. Bleeb (voice)
• 
  Felicity Kendal

  Elsa (voice)

• 
  René Le Vant

  Woog (voice)
• 
  Nigel Pegram

  (voice)
• 
  Jessica Angelson

  (voice)