• 
  Phil Karlson

  regizor

• 
  Ben Gazzara

  Dr. David Coleman
• 
  Fredric March

  Dr. Joseph Pearson
• 
  Barney Martin
• 
  Dolph Sweet

  Police Car Driver
• 
  Arthur Hill

  Tomaselli
• 
  William Hansen

  X-Ray Technician
• 
  Rosemary Murphy

  Miss Graves

• 
  George Segal

  Dr. Howard
• 
  Barnard Hughes

  Dr. Kent O'Donnell
• 
  Ina Balin

  Cathy Hunt
• 
  James Broderick

  Dr. Alexander
• 
  Eddie Albert

  Dr, Charles Dornberger
• 
  Ronald Reagan

  Narator

• 
  Arthur J. Ornitz

  imagine

• 
  Elmer Bernstein

  departament sunet
• 
  Ruth Morley

  costume
• 
  Robert Swink

  montaj
• 
  Hal Ashby

  editorial department
• 
  Lawrence Turman

  producător
• 
  Stuart Millar

  producător
• 
  Arthur Hailey

  scriitor
• 
  Joseph Hayes

  scriitor