A supervillain or supervillainess is a variant of the villain character type, commonly found in comic books, action movies and science fiction in various media.
They are sometimes used as foils to superheroes & other heroes. Whereas superheroes often wield fantastic powers, the supervillain possesses commensurate powers and abilities, and he could present a daunting challenge to the hero. Even without actual physical, mystical, superhuman or superalien powers, the supervillain often possesses a genius intellect that allows him to draft complex schemes or create fantastic devices. Other common traits include a megalomaniac streak, & possession of considerable resources to help further his aims. Many supervillains share some typical characteristics of real world dictators, mobsters, and terrorists & often have aspirations of world domination or universal leadership.
Superheroes and supervillains often mirror each other in their powers, abilities, or origins.