Attracted by the report of the development of a new type of rocket fuel, the vicious dictator of Krangkor, the dark planet, descends on Earth to steal the formula from its creator, the benevolent Dr. Makin.
Prince of Space / Wally
Dr. Macken
Ambassador Dictator Phantom
Susie
Mukai
Inspector Takeda
Colonel Watanabe
Mr. Tannen
Doctor Naitô
Commander Kôda
Tsunoda
Dr. Cohen (uncredited)
