Because you like Liesl von Trapp in The Sound of Music

Gollum is slimy and seething with hatred, the last person you would want to meet in a dark cave. See them in The Lord of the Rings.

If you need her, Lisa Simpson will be in her room with her saxophone and a good book. See them in The Simpsons.

A weather-controlling mutant, Storm doesn't just use her powers to ruin Magneto's day with unexpected showers. She is truly a badass. See them in X-Men Series.

Vivian Ward is a no-nonsense working girl with fairy-tale dreams. See them in Pretty Woman.

Cinder has been beaten down by the world, but she's learning that her cyborg abilities are pretty helpful. See them in Cinder .

Usagi Tsukino may look like a lazy teen, but when Usagi conjures up her alter ego and calls her Sailor Scout team, no villain stands a chance. See them in Sailor Moon.

Princess-turned-General Leia Organa is a sharp, fearless royal who gets herself into trouble and fights her way out of it. See them in Star Wars Series.

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

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

A skating genius, Victor Nikiforov dazzles women and men with a single glance. But deep down he's a cheerful goof. See them in Yuri on Ice.

Carl Fredricksen is a crotchety old man who may just have it in him to take one last, great adventure. See them in Up.