Because you like Arnold in Hey Arnold!

Ethan Hunt's mission, should he chose to accept it, is to save the world from impossible threats. See them in Mission: Impossible.

Will Herondale is an emotionally distant bad boy with a secret. See them in Clockwork Angel .

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

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.

Quentin has his whole life mapped out. It might sound boring, but he likes boring. See them in Paper Towns.

Teddy Sanders loves his frat brothers so much he might never leave school. See them in Neighbors.

Smart, sarcastic, and loyal, Stiles Stilinski doesn't just want to be the sidekick in someone else's life. See them in Teen Wolf.

Armin Arlert was wrong. This world hasn't become hell; it's been hell. He just couldn't see it before. See them in Attack on Titan.

Fiona Gallagher wants to be able to give her siblings everything that they deserve because her parents aren't going to do it. See them in Shameless.

Kat Stratford is part of the "out" crowd and proud of it. See them in 10 Things I Hate About You.

Mikasa Ackerman is a near-perfect soldier who won't break her stone-faced expression whether she's killing foes or protecting loved ones. See them in Attack on Titan.