• 
  Larry Cohen

  regizor

• 
  Larry Cohen

  scenarist

• 
  Michael Ansara

  The Captain
• 
  Andrew Duggan

  The Professor
• 
  Robert Emhardt

  The Executive
• 
  Sharon Farrell

  Lenore Davies
• 
  John P. Ryan

  Frank Davies
• 
  Guy Stockwell

  Bob Clayton

• 
  Nancy Burnett

  Nurse
• 
  James Dixon

  Lt. Perkins
• 
  Diana Hale

  Secretary
• 
  Daniel Holzman

  Chris
• 
  Shamus Locke

  The Doctor
• 
  Patrick McAllister

  Expectant Father (as Patrick Macallister)
• 
  Jerry Taft

  Expectant Father

• 
  William Wellman Jr.

  Charley
• 
  Gerald York

  Expectant Father

• 
  Rob Cohen

  producător
• 
  Robert Cahen

  producător
• 
  Jeffrey L. Kimball

  camera and electrical departme
• 
  Bernard Herrmann

  departament sunet
• 
  Peter Honess

  montaj
• 
  Rick Baker

  make-up department
• 
  Rob Cohen

  scriitor
• 
  Robert Cahen

  scriitor