• 
  Tom Gries

  regizor

• 
  Allan Balter

  scenarist

• 
  Anthony Franciosa

  Frank Karger
• 
  James Hong
• 
  Gary Lockwood

  David Seville
• 
  Scott Hylands

  Jim Capa
• 
  Gary Merrill

  Walter Dietrich
• 
  Hari Rhodes

  Dr. Loren Huxley

• 
  Lew Ayres

  President Charles Carter Durant
• 
  Vince Cannon

  Technician
• 
  John Carter

  Hazlitt
• 
  Bart Burns

  Steiner
• 
  Mariette Hartley

  Lisa Karger
• 
  Inga Swenson

  Ilyana Kovalefskii