Villain

A villain (also known in film and literature as the “antagonist,” “baddie”, “bad guy”, or “black hat”) is an “evil” character in a story, whether a historical narrative or, especially, a work of fiction. The villain usually is the antagonist (though can be the protagonist), the character who tends to have a negative effect on other characters. A female villain is sometimes called a villainess (often to differentiate her from a male villain).