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.
Gilderoy Lockhart's biggest idol is himself. See them in Harry Potter Series.
A smart, spunky, and incredibly skilled gamer, Art3mis has a revolutionary spirit. See them in Ready Player One.
A powerful priestess, Melisandre is shrouded in mystery and lots of red. See them in Game of Thrones.
A monstrous pirate captain, Davy Jones is quite literally heartless. See them in Pirates of the Caribbean: the Curse of the Black Pearl.
Blunt but anxious, Gretchen Ross bonds most easily with those who have lived tough lives like she has. See them in Donnie Darko.
Merciless and manipulative, Queen Ravenna is determined to become the fairest of them all. See them in Snow White and the Huntsman.
Ultron is security software turned evil mastermind. See them in Marvel Cinematic Universe.
How lucky are we that Arthur Curry, the King of Atlantis, hasn't taken over the surface world? Very! See them in DC Extended Universe.
A no-nonsense pro, Agent K has dedicated his whole life to his job. See them in Men in Black.