Because you like Jonathan Byers in Stranger Things

Think you grew up fast? At 12, Mathilda is an aspiring assassin eager to avenge her family's murder. See them in Leon: The Professional.

Jeff Winger thinks he's too cool for school, which is a problem because he just enrolled in community college. See them in Community.

With an abundant supply of alcohol, nice restaurants, and free will, Crowley is a demon who is thoroughly enjoying his time on Earth. See them in Good Omens: The Nice and Accurate Prophecies of Agnes Nutter, Witch.

For Vada Sultenfuss, it's hard to embrace growing up when you're obsessed with death. See them in My Girl.

Veronica Sawyer thinks that if you were happy every day of your life you wouldn't be a human being, you'd be a game-show host. See them in Heathers.

Kathy is a natural caretaker who strives to find hope in even the darkest of times. See them in Never Let Me Go.

On the outside, Gwen seems meek and calm. But she has an inner core of steel. See them in Merlin.

Extremely violent and loyal, Sandor Clegane is called the Hound for a reason. See them in Game of Thrones.

Prideful and psychotic tendencies combine to make Dr. Eggman a dangerous and villain who will squash anyone in his path. See them in Sonic the Hedgehog.

Lying is the most fun a girl like Alice can have without taking her clothes off. See them in Closer.

An ambitious man of science, Norman Osborn has become green with envy over Spider-Man's powers. See them in Marvel Cinematic Universe.

Mac is a karate-chopping, beer-chugging schemer. See them in It's Always Sunny in Philadelphia .