Supervillains, sometimes called supercriminals, are fictional characters generally appearing in comic books and in superhero movies as antagonists of superheroes. A Supervillain normally has powers that make him or her a threat that only a superhero can stop. A lot of Supervillains are enemies of specific superheroes. For example, the Supervillain Lex Luthor is an enemy of Superman, The Joker is an enemy of Batman, and the Green Goblin is an enemy of Spider-Man.