Black Cat

Felicia Hardy is originally depicted as the first love interest of Peter Parker, but is eventually replaced by Mary Jane Watson. In this incarnation it's revealed her father "The Cat" was fooled into sneaking into an American lab during WWII, memorize the super soldier formula and report back to the Red Skull at the last moment he realized the deception and ran away to a life of crime. Fast forward to the present The Cat is in a S.H.I.E.L.D. prison but is then breaked out by the Kingpin. Then Doc Ock, (working for the Kingpin) kidnaps Felicia as an leverage and used as a guinea pig for a improved super soldier formula which would give her strength equivolent of Captain America and also give her the ability to switch between blond haired un-mussled Felicia and super strong white haired Black Cat, she then recruited Spider-Man to assist in a rescue attempt for the Cat. After Kraven The Hunter was believed to be creating havoc in New York City, Black Cat helped made Spider-Man realize that he was trying to help his love Dr. Crawford. She was also featured in a smaller story arc where she was again kidnapped this time by Alistair Smythe to be used as leverage to get Spider-Man to kidnap either the Scorpion or the Vulture. It was later revealed that Smythe had developed a machine reversed engineered from the Time Tablet and Vulture's talons and that data extracted from the Genetic and molecular structure of the Scorpion (both Vulture and Scorpion suffered heavy exposure to Vulture's earlier prototypes) was needed. The three components were used in conjunction in a attempt to swap age and abilities of the baby Silvermane and Spider-Man but a rescue attempt by Black Cat, Vulture, and the freed Scorpion destroyed the machine and returned Silvermane to his proper age. After Morbius awakens as an vampire she struggles at figuring out how to stop him because of her feelings for him. She then finds herself teaming up with Blade, Spider-man and Morbius to take down Blades vampire mother who was using Dr. Connors genetic recombinator to create a army of vampires. She then decides to leave Spider-Man to work for Blade along with Morbius. She does come back however to help Spider-Man defeat Hydro-Man and also appears in Peter's wedding of him and Mary Jane Watson. She as Black Cat allies herself with Spider-Man and Kingpin fighting droids created by Alistair Smythe that are crashing the wedding. After Blade, Morbius and Black Cat nearly succeeded in capturing Blade's mother, Black Cat was brought into the Secret War do to a effort by Storm, Iron Man and Spider-Man and after the Secret War was over she was sent back to the exact time and place she was taken from to begin with no memory of the war.