Chameleon (comics)
The Chameleon (Dmitri Smerdyakov) is a fictional character, a supervillain appearing in American comic books published by Marvel Comics. Commonly depicted as a master of disguise and the half-brother of Kraven the Hunter, the Chameleon is known as being the first supervillain for Spider-Man to face by first appearing in the original issue of "The Amazing Spider-Man".
Ron-Karr
Ron-Karr appears in the animated "Legion of Super-Heroes" television series, voiced by Shawn Harrison. He is seen as a member of Lightning Lord's Light Speed Vanguard group. Unlike his comic book version, the animated Ron-Karr is a shapeshifter and even rivaled Chameleon Boy in "The Man from the Edge of Tomorrow" Pt. 2. While under the employ of Imperiex in the episode "Who Am I?", he was tricked into believing he was Superman which made him question why he was a villain. He wound up betraying Imperiex and helped the Legion stop the missiles headed for Chameleon Boy's home planet Durla.