• 
  John Sturges

  regizor

• 
  James Hong

  Dr. Yang
• 
  Edward Asner

  Veretti
• 
  Hari Rhodes

  Lt. Johnson
• 
  James Doohan

  Bit
• 
  George Maharis

  Lee Barrett
• 
  Richard Basehart

  Dr. Gregor Hoffman
• 
  William Bryant

  SDI Agent at Gas Station

• 
  Richard Bull

  Eric Cavanaugh
• 
  Harold Gould

  Dr. Ostrer
• 
  Anne Francis

  Ann Williams
• 
  Carey Loftin

  First Agent at Truck Crash
• 
  Russ Bender

  Mason
• 
  John Anderson

  Agent Reagan
• 
  Dana Andrews

  Gen. Williams

• 
  Simon Oakland

  Tasserly
• 
  Henry Beckman

  Dr. Baxter
• 
  Martin Blaine

  Henchman Posing as Henry Martin
• 
  John Clarke

  Lt. Raskin
• 
  Harry Lauter

  Fake SDI Agent
• 
  Frank Sutton

  Donald
• 
  John Larkin

  Dr. Leonard Michaelson

• 
  David H. DePatie

  animation department
• 
  Friz Freleng

  animation department
• 
  Herman A. Blumenthal

  art director
• 
  Lynn Stalmaster

  casting department
• 
  Robert Surtees

  imagine
• 
  Jerry Goldsmith

  departament sunet
• 
  Ferris Webster

  montaj
• 
  Jerry Goldsmith

  music department
• 
  John Sturges

  producător
• 
  John Moio

  cascador
• 
  Andrew Solt

  scriitor
• 
  Edward Anhalt

  scriitor
• 
  Alistair MacLean

  scriitor
• 
  James Clavell

  scriitor