Chameleon (comics)
Created by writer Stan Lee and artist Steve Ditko, the character first appeared in "The Amazing Spider-Man" #1 (March 1963), making him the first member of Spider-Man's rogues' gallery, based on issue publication date, excluding the burglar who murdered Ben Parker (Supercharger was the first Spider-Man supervillain chronologically). He is also well known to be related to Kraven the Hunter. That revealed relationship helped evolve him as a major villain compared to his original depiction of being just a solo villain in the original issue of "The Amazing Spider-Man".
Chameleon (comics)
However, the Chameleon was dealt a most humiliating defeat at the hands of Aunt May, when he attempted to trick her into believing he was Peter, then murder her. However, May was not fooled by any means, and defeated the villain with a plate of oatmeal-raisin cookies laced with Ambien. The Rhino was also employed as part of the team up and later defeated Spider-Man only to be unable to collect payment from Chameleon as he was already captured.