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.
List of Spider-Man enemies
Most of the supervillains of Spider-Man would be introduced in "The Amazing Spider-Man" comic book starting with the Chameleon. The early villains would be introduced in the 1960s in the Silver Age of Comic Books, and created by Stan Lee and Steve Ditko. John Romita Sr. replaced Ditko starting with the Rhino. Gerry Conway later replaced Stan Lee and helped create new adversaries for the web-slinger and also helped pave the way to the Bronze Age of Comic Books with the death of Spider-Man's long time romantic interest, Gwen Stacy. Many collaborators would soon take over "The Amazing Spider-Man" title. One of the more popular examples included Todd McFarlane's Venom in the Modern Age of Comic Books.