Because you like O-Ren Ishii in Kill Bill vol. 1

Raz is a 10-year-old boy who mostly stays in his own head, which makes sense since that's where he is strongest. See them in Psychonauts.

Percy Jackson is an ordinary student thrust into the world of myth come alive. See them in Percy Jackson & The Olympians: The Lightning Thief.

His name is Olaf, he's a snowman, and he likes warm hugs. See them in Frozen.

Hiccup Haddock III may be the only Viking nerd in recorded history. See them in How to Train Your Dragon.

Tobias "Four" Eaton is only afraid of four things, but you should probably be afraid of him. See them in Divergent.

A benevolent madman with a blue box, The Doctor is traveling through time and space to heal the wounds of the universe. See them in Doctor Who.

Albus Dumbledore oversees the most unsafe school in recorded history, with Dementors and giant arachnids run amok. See them in Harry Potter Series.

Dr. Gordon Freeman is a brilliant physicist is a quiet hero. And given all the violent aliens, he better be. See them in Half-Life.

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

It's hard to tell if Dean Winchester cares more about saving the world or his 1967 Chevy Impala. See them in Supernatural.

Dory is more than a little forgetful, but she'll always remember to have your back. See them in Finding Nemo.

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