Chameleon (comics)
The Chameleon was born a Soviet citizen named Dmitri Smerdyakov (Дмитрий Смердяков). In his youth, he was a servant and half-brother to Sergei Kravinoff and eventually became a minor associate to Gustav Fiers. Although Dmitri and Sergei were friends, Sergei was often abusive to Smerdyakov, leading to a combination of admiration and resentment towards Kravinoff. Eventually, Smerdyakov emigrated to the United States of America. As he had made a talent for himself during his youth, impressing his brother by impersonating friends and neighbors, he assumed an even more impressive disguise: the identity of Chameleon. During his first known criminal outing, he impersonated Spider-Man, though he was exposed and arrested. Shortly afterward, Kraven the Hunter himself came to America, and the Chameleon set his old associate's sights on Spider-Man. Both men became long-time enemies of Spider-Man, part of his primary rogues' gallery.
Spider-Man Noir
In order to censor the "Daily Bugle", Osborn kidnaps the editor J. Jonah Jameson and has the Chameleon assume his place. The Chameleon-as-Jameson goes to Urich’s apartment and shoots him, unaware that Felicia witnessed the murder. Hardy goes to the "Daily Bugle" offices and kills the Chameleon, leaving his body to be discovered by Spider-Man shortly before the arrival of the police. Spider-Man escapes the attentions of the police and goes to his home, where he killed the Vulture, in order to stop him from murdering Aunt Parker. Despite saving his aunt, May criticized him for killing the Vulture, as he could have stopped him with his powers. She told Peter that killing people would make him less of what makes him human.