Because you like Lisbeth Salander in The Girl with the Dragon Tattoo

Killua Zoldyck is so tired of killing. He just wants to be a kid, hanging out and doing stuff with his friends. See them in Hunter x Hunter.

Tina Belcher is on the cusp of puberty, and she has no shame when it comes to boys, butts, and brassieres. See them in Bob's Burgers.

His murderous megalomania aside, Loki is quite charming. Just don't mention his strapping older brother; he's a tad jealous. See them in Marvel Cinematic Universe.

With his own ship, Peter Quill calls his own shots, and gets to fly from planet to planet blasting '70s pop hits and picking up alien chicks. See them in Marvel Cinematic Universe.

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

When the Sorting Hat touched Draco Malfoy's head, it placed him in Slytherin, a house that has turned out more dark wizards than any other. See them in Harry Potter Series.

Baloo is a fun-lovin' bear who just needs the bare necessities of life See them in The Jungle Book.

In a rag-tag group of kids determined to take down the imperialistic Fire Lord, Katara is the glue that holds them together. See them in Avatar: The Last Airbender.

Dewey Finn will rock you. He feels rock and roll in his blood and guts. See them in School of Rock.

Finn is the world's last human who's "all about" understanding right and wrong. See them in Adventure Time.

While he might be too cool for school, Soul isn't too cool to do the right thing. See them in Soul Eater.

An agile and powerful swordswoman, Saber is a dignified warrior down to her bones. See them in Fate/Stay Night.