Because you like Minerva McGonagall in Harry Potter Series

Faith balances her adventurous thrill-seeking attitude with a righteous passion for justice. See them in Mirror's Edge.

Beware! Anton Chigurh carries a coin with him, which he forces his victims to flip to decide whether they will live or die. See them in No Country for Old Men.

Carl Gallagher is a budding psychopath fascinated with rule breaking. See them in Shameless.

Alison DiLaurentis believes you're always better off with a really good lie. See them in Pretty Little Liars.

Always headed towards adventure, Goku is frequently with a band of loyal companions at his side. See them in Dragon Ball.

Napoleon Dynamite loves tater tots, mythical beasts, and reveling in his awkwardness. See them in Napoleon Dynamite.

Stewie Griffin is just your average evil-genius, talking, sociopathic baby. See them in Family Guy.

A secret smoker, Margot Tenenbaum has plenty more secrets where that came from. See them in The Royal Tenenbaums.

When it comes to Haruko Haruhara, there's more to the pink-haired biker than meets the eye. See them in FLCL.

Mike Lane is magnetic, beefy, and street-smart, but how long can he keep up with the red-light scene? See them in Magic Mike.

Juliet Starling is a cheerleader by day, gleefully unhinged zombie killer by night. See them in Lollipop Chainsaw.

While Alan Garner is loyal to his new friends, his efforts to help them often do more harm than good. See them in The Hangover.