Because you like Hal 9000 in 2001: A Space Odyssey

Hanna Marin is a determined girl defined by her ability to transform herself. See them in Pretty Little Liars.

Ace pilot Asuka Langley Soryu is confident, haughty, and a little less grown-up than she pretends to be. See them in Neon Genesis Evangelion.

Light Yagami has a plan to make a better world, and morals won't stop him. See them in Death Note.

A former high school outcast, Rebecca Doppelmeyer is tentatively shaking off her misanthropic personality. See them in Ghost World.

Is there more to life than being really, really, ridiculously good looking? Derek Zoolander thinks not. See them in Zoolander.

Sookie Stackhouse is a waitress who can read minds and break hearts. See them in True Blood.

Fiery and adventurous, Amy Pond is the sort of woman you'd want by your side on a journey through time and space. See them in Doctor Who.

Phoebe Buffay works as a masseuse while attempting to put her spark in a world where everyone else’s seems to have dulled. See them in Friends.

A dreamy space cadet, Luna Lovegood has never met a conspiracy theory she didn't believe in. See them in Harry Potter Series.

A superpowered test subject, Scarlet Witch can manipulate other people's thoughts and force them to confront their worst fears. See them in Marvel Cinematic Universe.

A wildly brilliant detective, Sherlock Holmes can figure out everything except how to interact with other human beings. See them in Sherlock.

Severus Snape is a misanthropic potions teacher with a vindictive streak. See them in Harry Potter Series.