Because you like Carl Grimes in The Walking Dead

When dealing with a half-demon partner and a world of violence, Kagome Higurashi has plenty of chances for her true courage to shine. See them in Inuyasha.

Emma Woodhouse knows what's best for everyone else. Just don't try to tell her what to do. See them in Emma.

Marv is a brutish but principled thug who'd be right at home on an ancient battlefield. See them in Sin City.

Celine's a spontaneous Parisian college student enjoying the night of her life. See them in Before Sunrise.

The Terminator is an emotionless killing machine who won't stop until he's changed the future. See them in The Terminator.

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.

Some say to survive in Underland you need to be as mad as a hatter–which, luckily, he is. See them in Alice in Wonderland.

Lyra Belacqua is prone to getting in trouble, but she's also clever enough to get out of it. Most of the time. See them in The Golden Compass.

A fight every now and then makes Dante's life a little more interesting. See them in Devil May Cry.

This mathematical genius doesn't have time for small talk; Alan Turing needs to break Enigma, the Nazi's cipher machine. See them in The Imitation Game.