Kraven the Hunter

S1, E7: Peter Parker has an interview with a scientist named Mariah Crawford. When Peter gets to her office she is under attack by the villain Kraven the Hunter after Spider-Man is able to elude him Dr. Crawford explains that Kraven and her used to be in love but when he was seriously injured by some lions she had no choice but to give him this wonder drug, left a former associate of her that can heal all wounds. But, also develops animal like senses and abilities which changes his personality. Spider-Man drops her off at Robbie's apartment thinking that he is out of town, but when Robbie comes back early Kraven kidnaps him for thinking that he is Mariah's other man.