Because you like Liesl von Trapp in The Sound of Music

Will Turner is an earnest, lovelorn blacksmith's assistant with an adventurous spirit. See them in Pirates of the Caribbean: the Curse of the Black Pearl.

Derek Shepherd is a talented and passionate neurosurgeon. Some people call him McDreamy. See them in Grey's Anatomy.

Iris West is a barista and blogger determined to expose a secret. See them in DC Extended Universe.

Emma Woodhouse knows what's best for everyone else. Just don't try to tell her what to do. See them in Emma.

This cannibalistic villain may be a loner, but Killer Croc doesn't have problems with self-confidence. See them in Suicide Squad.

Ciri had a princess upbringing, and some of the facts of common people's lives are a mystery to her. See them in The Witcher.

Chris Chambers is from a family of social outcasts and criminals, and he wants more than anything to avoid ending up like them. See them in Stand By Me.

Despite the war-torn world around him, Mal Reynolds still holds onto the shred of hope that life can be more than just living another day. See them in Firefly.

Protecting his family's name and its power are more important to Tywin Lannister than anything or anyone. See them in Game of Thrones.

Donkey is proof that if you're annoying enough you can change the world; he's the reason that his friend Shrek does, well, anything. See them in Shrek.

A kind, sensitive medical intern doing the best he can, George O'Malley sometimes struggles to keep up. See them in Grey's Anatomy.

Bodhi Rook is a defected pilot for the Galactic Empire dead set on destroying the Death Star. See them in Rogue One.