Because you like George Smiley in Tinker Tailor Soldier Spy

Terence Fletcher is a brutal and unflinchingly strict music teacher hell-bent on whipping his students into shape. See them in Whiplash.

Born and raised in the darkness, Bane is determined to have the city totally under his control so that he can demolish it. See them in DC Extended Universe.

Combining an innocent face with an insatiable bloodlust, Eli recruits friends to join the vampire way of life. See them in Let the Right One In.

Ava may just be the perfect woman. So long as she can pass a Turing test. See them in Ex Machina.

Barry Egan has too many anger issues to list here. See them in Punch Drunk Love.

A powerful mob boss, Vito Corleone is always making offers people can't refuse. See them in The Godfather.

Cyclops shoots lasers out of his eyes, destroying anything in his line of sight. See them in X-Men Series.

Mr. Pink doesn't tip. Enough said. See them in Reservoir Dogs.

Claire Underwood is scary intimidating, and she knows it. See them in House of Cards.

Aldo Raine is in the killing Nazi business. And as he says, business is a-boomin'. See them in Inglourious Basterds.

Stranded on Mars, Mark Watney is armed with quick wits, an electronic diary, disco music, and an undying resolve to make it back. See them in The Martian.

A loyal assistant to Nelson and Murdock, Karen Page has a way of finding trouble. See them in Marvel Cinematic Universe.