Because you like Seven of Nine in Star Trek: Voyager

There is never a dull moment with Jim Moriarty: expect booze and sing alongs in between all of the homicide. See them in Sherlock.

It is a truth universally acknowledged that Elizabeth Bennet doesn't suffer fools or prideful men. See them in Pride & Prejudice.

Christian Grey is just as controlling in the bedroom as the boardroom. See them in Fifty Shades of Grey.

Number Five is a 58-year-old man trapped in his 13-year-old body. See them in The Umbrella Academy.

Bridget Jones is a wanton sex goddess, struggling 30-something, and semi-hot mess. See them in Bridget Jones's Diary.

It turns out the girl of your dreams just might have dreams of her own. See them in (500) Days of Summer.

A suave demon, Crowley grants humans their wishes in exchange for their soul, only to find loopholes that benefit him. See them in Supernatural.

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.

Neil Perry is a brilliant student with an artist's soul. And he's desperate to unleash it. See them in Dead Poets Society.

Willow Rosenberg may be a witch who can defeat the forces of evil, but she still gets emotional over kittens on the Internet. See them in Buffy the Vampire Slayer.

Aragorn is the one true king, a title he is too humble to accept. See them in The Lord of the Rings.