• 
  John Van Dreelen

  Dr. Bourman
• 
  Stephen Bekassy

  Gen. Karl Kruse
• 
  Boyd 'Red' Morgan

  Căpitan
• 
  Vladimir Sokoloff

  The Supreme
• 
  Arianne Ulmer

  Capt. Markova (as Arianne Arden)
• 
  Robert Clarke

  Maj. William Allison
• 
  Neil Fletcher

  Air Force Chief
• 
  Don Flournoy

  Mutant

• 
  Jack Herman

  Dr. Richman
• 
  Ken Knox

  Col. Marty Martin
• 
  John Loughney

  Gen. Lamont
• 
  Russ Marker

  Col. Curtis (as Russell Marker)
• 
  Tom Ravick

  Mutant
• 
  William Shephard

  Gen. York (as William Shapard)
• 
  James 'Ike' Altgens

  Secretary Lloyd Patterson (as James Altgens)

• 
  Ernst Fegté

  design de producţie
• 
  Boyd 'Red' Morgan

  cascador