• 
  Kurt Neumann

  regizor

• 
  Hugh O'Brian

  Harry Chamberlain
• 
  Lloyd Bridges

  Col. Floyd Graham
• 
  Morris Ankrum

  Dr. Ralph Fleming
• 
  Bert Stevens

  Reporter
• 
  Patrick Aherne

  Reporter #1
• 
  James Conaty

  Doctor Taking Lisa's Blood Pressure
• 
  Stuart Holmes

  Reporter

• 
  Noah Beery Jr.

  Maj. William Corrigan

• 
  Ferde Grofé Sr.

  departament sunet
• 
  Harry W. Gerstad

  montaj
• 
  Albert Glasser

  music department
• 
  Kurt Neumann

  producător
• 
  Dennis Muren

  visual effects
• 
  Harry Walton

  visual effects

• 
  Kurt Neumann

  scriitor
• 
  Orville H. Hampton

  scriitor
• 
  Jack Davies

  scriitor