Because you like White Witch in The Chronicles of Narnia

Emma Frost's superpower: transforming her body into an unbreakable diamond. See them in X-Men Series.

Green skin, pointy hat, evil cackle—this villain has it all! See them in The Wizard of Oz.

James Gordon happens to be the one guy in Gotham City with proper morals who doesn't also run around in a cape. See them in DC Extended Universe.

A monstrous pirate captain, Davy Jones is quite literally heartless. See them in Pirates of the Caribbean: the Curse of the Black Pearl.

Gilderoy Lockhart's biggest idol is himself. See them in Harry Potter Series.

A formerly righteous wizard, Saruman has been corrupted by the forces of evil. See them in The Lord of the Rings.

A smart, spunky, and incredibly skilled gamer, Art3mis has a revolutionary spirit. See them in Ready Player One.

Merciless and manipulative, Queen Ravenna is determined to become the fairest of them all. See them in Snow White and the Huntsman.

A no-nonsense pro, Agent K has dedicated his whole life to his job. See them in Men in Black.

Christine Palmer is a great surgeon and an even better friend. See them in Marvel Cinematic Universe.

Ultron is security software turned evil mastermind. See them in Marvel Cinematic Universe.

Leonardo is spiritual, and devoted to more than just pizza. See them in Teenage Mutant Ninja Turtles.