Because you like George Smiley in Tinker Tailor Soldier Spy

If Lisbeth Salander can hurt a bastard who deserves it by digging up stuff about him, she feels good. See them in The Girl with the Dragon Tattoo.

Kathy is a natural caretaker who strives to find hope in even the darkest of times. See them in Never Let Me Go.

Holland March is known to wake up hungover in full bathtubs. See them in The Nice Guys.

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.

A brilliant "extractor," Dom Cobb has spent the past few years running from the authorities and his inner demons. See them in Inception.

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.

Judge Dredd is less a man and more a living manifestation of justice. See them in Dredd.

Hawkeye Pierce is a Devil-may-care Army doc who'd have the Devil laughing and drinking in five minutes flat. See them in M*A*S*H.

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.

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

In his transformation from hardened convict to moral paragon, Jean Valjean is the kind of man we should all aspire to be. See them in Les Miserables.

A debonair spy, Harry Hart is the epitome of a gentleman, even when he calmly takes down multiple men with a militarized umbrella. See them in Kingsman: The Secret Service.