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".
Batman and Robin (comic book)
Batman and Robin is an American comic book ongoing series, created by Grant Morrison and featuring Batman and Robin. The debut of the series followed the events of "Batman R.I.P.", "Final Crisis", and "" in which the original Batman, Bruce Wayne, apparently died at the hands of DC Comics villain Darkseid and features the winner of the "Battle for the Cowl" as the new Batman. The conclusion of "Battle for the Cowl" shows Dick Grayson ascending to the role of Batman, while Damian Wayne becomes the new Robin.