Because you like Danny Zuko in Grease

A bumbling hobbit, Bilbo Baggins is becoming a part of something much larger than himself as he embarks on a quest. See them in The Hobbit: An Unexpected Journey.

Victor Frankenstein can create life, so he's pretty awesome if he says so himself. See them in Frankenstein.

Thanks to the contributions of this 14-year-old, the world is only occasionally destroyed by his grandfather. See them in Rick and Morty.

Don't ask Rosa Diaz, a Brooklyn detective, to lighten up. Actually, to be safe, don't ask her to do anything! See them in Brooklyn Nine-Nine.

Rapunzel's dreams might be even bigger than her hair. See them in Tangled.

A house elf, Dobby is loyal, compassionate, and yearning for freedom. See them in Harry Potter Series.

Caleb Rivers is a bad boy with a good reason for acting out. See them in Pretty Little Liars.

Jasper Jordan is trying his best to make it through the night. See them in The 100.

Derek Morgan is thoughtful and kind, but he won't say no to knocking the occasional door down when he gets the chance. See them in Criminal Minds.

Anger-filled, merciless, and tortured, Kylo Ren is always at war—with the Rebel Alliance, and with himself. See them in Star Wars Series.

Obi-Wan Kenobi is a sage Jedi who doesn't need to say much to teach you a galaxy's worth of wisdom. See them in Star Wars Series.

Reckless, vulgar, loud-mouthed: that's what makes Amethyst so awesome. See them in Steven Universe.