Koreyoshi Akasaka

A monstrous evil brain from outer space leads his minions on a crusade to conquer the universe, and unleashes hideous monsters on Earth that spread deadly diseases. Superhero Starman must rescue Earth from the menace of the evil brain while battling armies of monsters the brain sends against him. (imdb)

Super criminals are planning to infiltrate Earth with mass nuclear destruction! Only Starman can defend civilization by thwarting evil! (imdb)

Benevolent aliens from the planet Emerald send superhero Starman to protect Earth from invasion by an evil alien race called the Spherions. When Starman arrives on Earth, he discovers a conspiracy involving Earth's top scientists, and he must root out the traitors and also stop the impending alien invasion. (imdb)

A bunch of pernicious salamander men from the planet Kulimon in the Moffit Galaxy plan on taking over Earth by unleashing a lethal plague on mankind. It's up to valiant superhero Starman from the Emerald Planet to save the human race before it's too late. (imdb)