Doc Steele

Origin
Dr. Jack Steele is a brilliant scientist who developed a serum called Alosun, a distillate of sun atoms. in order to "defeat crime." He spent many years developing it before he decided to field-test it in his first appearance, when he faced off against the Faceless Phantom. Ingestion of this serum gives him superhuman strength, the ability to fly, and invulnerability. Doc Steele was assisted by his his fiance, Virginia Thompson. Doc Steele didn't have a secret identity and he was usually recognized on the streets of his native city. The city's mayor occasionally contacted him to request assistance in some case that was beyond the capacities of mundane law enforcement.