- Guy Madison
- Lt. Phil Johnson
- Mala
- Sgt. Koovuk
- Carole Mathews
- Lt. Jane
- Gloria Saunders
- Alak
- Lee Frederick
- Major Bennett
- John Bryant
- Enemy Pilot Alex
- Richard Vath
- Maj. Elia
- Philip Ahn
- Tuglu, the spy
- Tony Benroy
- Cpl. Savick
- Gordon Barnes
- Capt. Mack MacLoflin
- John Bleifer
- Commissar Volgan
- Gene Roth
- Colonel Duboff
- Muriel Maddox
- Nurse Ruth
- Robert Bice
- Chief Nanu
- Renny McEvoy
- Sgt. Spike Koops
- Bert Arnold
- Riggs
- Richard Emory
- Lt. Stone
- Dick Pinner
- Long
- George Pembroke
- Maj. Slavin
- Robert Carson
- Debriefing General
- William Fletcher
- Kresnick
- Richard Barron
- Russian Officer
- Whitey Hughes
- Corporal
- William Shaw
- Narrator
