• 
  Andrew Marton

  regizor

• 
  Shirley Eaton

  Dr. Margaret E. 'Maggie' Hanford
• 
  Lloyd Bridges

  Dr. Doug Standish
• 
  Keenan Wynn

  Hank Stahl
• 
  Gary Merrill

  Dr. August 'Gus' Boren
• 
  David McCallum

  Dr. Philip Volker
• 
  Marshall Thompson

  Dr. Orin Hillyard
• 
  Frank Logan

  Captain of the Diligence

• 
  Clifford H. Poland Jr.

  imagine
• 
  Harry Sukman

  departament sunet
• 
  Ivan Tors

  producător
• 
  Andrew Marton

  producător
• 
  Franklin Milton

  sound department
• 
  Jim Danforth

  visual effects
• 
  Arthur Weiss

  scriitor