Because you like Rachel Watson in The Girl on the Train

Don't ask the ruthless queen of the Tokyo underworld any questions unless you're fine with losing a limb. See them in Kill Bill vol. 1.

Jack's big imagination is never limited by his incredibly cramped surroundings. See them in Room.

Miss Havisham is the creepiest old rich lady in town. See them in Great Expectations.

The crown prince of the Fire Nation, Zuko has been ordered by his father to find the long-lost Avatar before he is allowed to return home. See them in Avatar: The Last Airbender.

People think Karen Smith is a dumb blonde, but she disagrees and is proud she can predict the weather with her breasts. See them in Mean Girls.

Polite and clever, Annie James is not afraid to stir up a little mischief. See them in The Parent Trap.

Despite the dissolution of his state, Prussia hangs on – mooching off his younger brother Germany and reading comics. See them in Axis Powers Hetalia.

Caleb Rivers is a bad boy with a good reason for acting out. See them in Pretty Little Liars.

Extremely violent and loyal, Sandor Clegane is called the Hound for a reason. See them in Game of Thrones.

Merlin is half awkward teenager, half super-powerful wizard. He serves Prince Arthur of Camelot during the day and illegally learns magic at night. See them in Merlin.

He may seem like a charismatic leader, but Bellamy also has a ruthless, self-serving streak See them in The 100.