As a 13-year-old boy during World War II, John Hardesky was tricked by Nazis into spying on the creation of Captain America, memorizing the formula used to create him. However, he then realized that he had been tricked and refused to reveal the formula to the Red Skull, fleeing.[1]

Hardesky grew up to be the Cat, a highly experienced burglar. He also fathered a daughter named Felicia. When he was caught in the midst of a jewel theft, the Cat was incarcerated in S.H.I.E.L.D., partly to protect his knowledge of the super soldier formula. Years later, he was abducted from custody by the Kingpin, who attempted to force him into revealing the formula. Hardesky did so after the crime lord kidnapped his daughter, and the recreated serum was tested out on her.[1]

As a result, Felicia became a crimefighter known as the Black Cat, and teamed up with Spider-Man to save her father, who then allowed himself to be taken back into S.H.I.E.L.D. custody to protect his knowledge.[2]


Highly skilled burglar and in hand-to-hand combat. Also possesses a photographic memory.

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