Starman I is Ted Knight, a 1940s superhero who wore a costume of red tights with a fin on his helmet, and wielded a "gravity rod" (later "cosmic rod") as a member of the Justice Society of America.
Starman VII is Jack Knight, a 1990s superhero and the younger son of the original. He did not wear a costume, and wielded a cosmically-powered "staff". He was the protagonist of a popular comic book series written by James Robinson.
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