Because you like Jim in The Adventures of Huckleberry Finn

Stranded on Mars, Mark Watney is armed with quick wits, an electronic diary, disco music, and an undying resolve to make it back. See them in The Martian.

Arthur Dent is an incredibly normal man on an incredibly abnormal adventure. See them in The Hitchhiker's Guide to the Galaxy.

There's no obstacle too great for this charismatic treasure-hunter. See them in Uncharted.

Steven Universe is an excitable youth who likes junk food and trying to save the world. See them in Steven Universe.

John Bender's interests include marijuana, fighting, and breaking the rules. See them in The Breakfast Club.

Sandy Olsen is out of her head, hopelessly devoted to Danny. See them in Grease.

The crown prince of the Fire Nation, Zuko has been ordered by his father to find the long-lost Avatar before he is allowed to return home. See them in Avatar: The Last Airbender.

A formerly timid caterpillar, Kurt Hummel is transforming into a glamorous, confident butterfly. See them in Glee.

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.

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

Nadine Franklin likes to wallow in her misery almost as much as she likes to torment her mother. See them in The Edge of Seventeen.

Winnie the Pooh is a chubby little cubby all stuffed with fluff. See them in Winnie the Pooh.