The Guardian is a superhero legacy that is notorious for its many clones. The Golden Age Guardian was Jim Harper, a police officer in Metropolis' Suicide Slum, friend and ally of the Newsboy Legion. He was a member of the war-time All-Star Squadron. He is the great-uncle of Roy Harper, Jamie Harper, and "Famous Bobby" Harper.
Years later, Harper was cloned by Project Cadmus, and several other clones were made from the genetic material of either Harper or his clone. Other people who took the alias were Mal Duncan in the Silver Age and Jake Jordan, the Manhattan Guardian.
The Guardian was created by Jack Kirby and Joe Simon, first appearing in Star-Spangled Comics #7 (1942).
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