Because you like Maya Ishii-Peters in PEN15

Don't worry about this forensic scientist offing you unless you're a serial killer yourself. (You're not, right? Just checking.) See them in Dexter.

Like her trusty sword, Arya Stark is tiny but vicious. See them in Game of Thrones.

Hell hath no fury like an evil fairy scorned. See them in Maleficent.

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.

Wearing couture pinstripe suits over his cut abs, banker Patrick has a way with the ladies. But his relationships never end well. See them in American Psycho.

Nina Sayer finally landed the role of prima ballerina, but as tension ramps up in rehearsal, she starts losing her mind. See them in Black Swan.

Jenna Rink is physically 30 but emotionally 13. She has a better excuse than most. See them in 13 Going on 30.

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

Margo loves mysteries so much that she becomes one. See them in Paper Towns.

Ellie is more world-weary than most 14-year-olds. You would be too if your world was infested with zombies. See them in The Last of Us.

When push comes to shove, the usually overly cautious Luigi has the heart of a hero. See them in Super Mario Bros..

He tells you everything you need to know: "I. Am. Groot." See them in Marvel Cinematic Universe.