The Lizard (Curtis "Curt" Connors) is a fictional character, a super-villain appearing in American comic books published by Marvel Comics. In the stories, Dr. Connors was a genetic biologist who researched the ability of certain reptiles to regrow missing limbs, partially to find a way to regenerate his right arm. After a test on himself, he transforms into a violent lizard monster. Though able to revert to his human form, he suffers occasional fits of his alter ego breaking free.