Because you like Jane Hawking in The Theory of Everything

Regina Mills is a cold evil queen turned chilly town mayor. See them in Once Upon a Time.

Emily Fields has been very guarded, careful of whom she trusts and reveals her secrets to. See them in Pretty Little Liars.

With the loyalty and pluckiness of a puppy, Nana Komatsu is a hopeless romantic. See them in Nana.

Aang is already a master airbender and once he learns to manipulate water, earth, and fire, he'll be truly unbeatable. See them in Avatar: The Last Airbender.

This high school queen bee has everything, including a genius-level IQ—a fact Lydia Martin keeps hidden to maintain her image. See them in Teen Wolf.

Veronica Lodge is a sophisticated girl who always, no matter what, absolutely gets what she wants. See them in Archie Comics.

Though bold and pure of heart, Utena Tenjou has a fairytale vision of the world that can make her oblivious to its darkness. See them in Revolutionary Girl Utena.

Jax Teller can be cool or vengeful, calm or wrathful, depending on the situation. See them in Sons of Anarchy.

Given his ability to wrench street signs from the ground, Shizuo Heiwajima is a useful one to have in dangerous Ikekuburo. See them in Durarara!!.

John Locke is an eerily calm, confident believer in the magic of the island that gave him his legs back. See them in Lost.

He's an eccentric pirate making it up as he goes along. He's Jack Sparrow, savvy? See them in Pirates of the Caribbean: the Curse of the Black Pearl.