Because you like Harry Lime in Home Alone

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.

Rose Hathaway is a reckless, rebellious smartass who's training to be a royal vampire guardian. See them in Vampire Academy.

Megamind is searching for purpose in a supervillain life without a superhero to fight. See them in Megamind.

Lady Bird's heart is in the right place, usually, but even the purest of people can fall sway to the havoc-wreaking traps of senior year. See them in Lady Bird.

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

Whatever Sakura Haruno lacks in power, she makes up for in intelligence and bravery. See them in Naruto.

John Watson is haunted by his past (who isn't) but he's starting to branch out with some help from a world class detective. See them in Sherlock.

Ezio Auditore Da Firenze is a little short-tempered, a lot fun-loving. See them in Assassin's Creed Series.

This high school queen bee has everything, including a genius-level IQ—a fact Lydia Martin keeps hidden to maintain her image. See them in Teen Wolf.

Percy Jackson is an ordinary student thrust into the world of myth come alive. See them in Percy Jackson & The Olympians: The Lightning Thief.

V is a violent anarchist with literally nothing left to lose. But, he might have a point. See them in V for Vendetta.

Basically a giant pillow come to life, Baymax is a medical robot created for the sole purpose of helping people. See them in Big Hero 6.