• 
  Joe Johnston

  regizor

• 
  Tom Schulman

  scenarist
• 
  Stuart Gordon

  scenarist
• 
  Ed Naha

  scenarist
• 
  Brian Yuzna

  scenarist

• 
  Robert Oliveri

  Nick Szalinski
• 
  Rick Moranis

  Wayne Szalinski
• 
  Marcia Strassman

  Diane Szalinski

• 
  Amy O'Neill

  Amy Szalinski
• 
  Trevor Galtress
• 
  Thomas Wilson Brown

  Little Russ Thompson
• 
  Patrick Brown
• 
  Matt Frewer

  Big Russ Thompson
• 
  Martin Aylett

  Harold Boorstein
• 
  Mark L. Taylor

  Don Forrester

• 
  Janet Sunderland

  Lauren Boorstein
• 
  Jared Rushton

  Ron Thompson
• 
  Kimmy Robertson

  Gloria Forrester
• 
  Kristine Sutherland

  Mae Thompson
• 
  Laura Waterbury
• 
  Lou Cutell

  dr. Brainard
• 
  Frank Welker

  (voce)
• 
  Craig Richard Nelson

  profesorul Frederickson
• 
  Carl Steven

  Tommy Pervis

• 
  Penney Finkelman Cox

  producător
• 
  Hiro Narita

  imagine
• 
  Carol Brolaski

  costume
• 
  Michael A. Stevenson

  montaj
• 
  James Horner

  coloană sonoră
• 
  Gregg Fonseca

  design de producţie
• 
  Macedonio Ramos

  decoruri