Because you like Frances Houseman in Dirty Dancing

Whether it's getting a deal or finishing a homework assignment, Jessica Huang demands nothing less than the best from those around her. See them in Fresh off the Boat.

Artemis Fowl understands the way of the world. If he wins, he's a prodigy. If he loses, then he's crazy. That is how history is written. See them in Artemis Fowl.

Smart, sarcastic, and loyal, Stiles Stilinski doesn't just want to be the sidekick in someone else's life. See them in Teen Wolf.

Lily Aldrin is a flaky but supportive kindergarten teacher and painter. See them in How I Met Your Mother.

Leonardo is spiritual, and devoted to more than just pizza. See them in Teenage Mutant Ninja Turtles.

As a doctor-in-training, John Dorian should have his head in the game. But most of the time, it's in the clouds. See them in Scrubs.

Not only could Hellboy avenge your death, he'd also have a sense of humor about it and not let it ruin the rest of his night. See them in Hellboy.

Point the fun-loving Pippin Took towards second breakfast, and he's one happy hobbit. See them in The Lord of the Rings.

Relentlessly cheerful and optimistic, Erin Hannon is an office receptionist. See them in The Office.

Eleanor puts up a tough front, even when everyone else tries to tear her down. See them in Eleanor and Park .

You won't like him when Bruce Banner is angry. See them in Marvel Cinematic Universe.