Because you like Saruman in The Lord of the Rings

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.

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

Osha is a savvy Wildling in an increasingly wild world. See them in Game of Thrones.

With her mastery of martial arts and her prodigious building skills, Wyldstyle projects an air of invincibility. But she's not bulletproof. See them in The Lego Movie.

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

A powerful priestess, Melisandre is shrouded in mystery and lots of red. See them in Game of Thrones.

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

Javert is an inspector with a single-minded focus: to bring criminals to justice. See them in Les Miserables.

Both a noble district attorney and a psychopathic villain, Harvey Dent proves some men really can have it all. See them in DC Extended Universe.

Protecting his family's name and its power are more important to Tywin Lannister than anything or anyone. See them in Game of Thrones.

Khan Noonien Singh is super strong, super smart, and out for revenge. He always seems to be two steps ahead of his enemies. See them in Star Trek Into Darkness.