Because you like Mikaela Banes in Transformers

Good fashion? Check. Snarky quips? Check. Supernatural evil-fighting powers? Also check. See them in Buffy the Vampire Slayer.

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

Severus Snape is a misanthropic potions teacher with a vindictive streak. See them in Harry Potter Series.

The star of every school production since kindergarten and the most popular girl of East High, Sharpay Evans usually gets her way. See them in High School Musical.

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.

With the ocean breeze behind him and the open seas ahead of him, Jack Dawson feels as if he is king of the world. See them in Titanic.