Because you like Raj Koothrappali in The Big Bang Theory

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

You don't teach a class called "How To Get Away With Murder" without knowing a thing or two about getting away with things. See them in How to Get Away with Murder.

A great galactic bounty hunter, Samus Aran is not as good at expressing emotions. See them in Metroid.

Hiccup Haddock III may be the only Viking nerd in recorded history. See them in How to Train Your Dragon.

He's the great Black Star, and he's come to assassinate you. See them in Soul Eater.

Charming and confident, Gus Waters is determined to leave a lasting mark on the world. See them in The Fault in Our Stars.

Part of an elite team of investigators, Abby Sciuto is the happiest Goth to ever work in law enforcement. See them in NCIS.

Mario is a plumber who wears a ridiculous outfit, eats weird looking mushrooms, and fits himself inside your pipes so he can save a princess. See them in Super Mario Bros..

An alien, a time-traveler, and an esper are following Haruhi Suzumiya, who – unknown to herself – is a near-omnipotent reality warper. See them in The Melancholy of Haruhi Suzumiya.

With a unique ability to empathize with killers, Will Graham helps society but his sanity pays the price. See them in Hannibal.

Peter Pan is a boy who never grew up. See them in Peter Pan.

A super-soldier, Master Chief might be more machine than man. And for humanity's sake, thank God. See them in Halo.