Because you like John Keating in Dead Poets Society

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.

A poised, stately man-out-of-time, Ichabod Crane typically faces the modern world with wry quip. See them in Sleepy Hollow.

Casey Gardner is an angsty teenage girl with quite a bit of sass that keeps getting her in trouble. See them in Atypical.

Elizabeth Harmon loves to win at chess, but competitive pressure and her past are taking a toll. See them in The Queen's Gambit.

A champion of chivalry, Don Quixote is dutifully bringing good to the world—even when others think he's out of his mind. See them in Don Quixote.

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

With an undeniable sense of adventure, Huck Finn is an expert at getting into and, more importantly, out of sticky situations. See them in The Adventures of Huckleberry Finn.

Rory Williams is a caring companion whose specialty is looking after others. See them in Doctor Who.

Celie Johnson says she's poor, black, and may even be ugly. But dear God she's here. See them in The Color Purple.

Suzy Bishop is only 12, but her withering stare and withdrawn personality are enough to make anyone wilt. See them in Moonrise Kingdom.