Because you like Penny Hartz in Happy Endings

Aang is already a master airbender and once he learns to manipulate water, earth, and fire, he'll be truly unbeatable. See them in Avatar: The Last Airbender.

Regina George is teen royalty. And anything the queen bee says, goes. See them in Mean Girls.

Beca Mitchell fancies herself an edgy loner, but it turns out being part of a group can be aca-amazing. See them in Pitch Perfect.

Sheldon Cooper is brilliant in every way except, well, interacting with any human being. See them in The Big Bang Theory.

WALL-E is a quirky little romantic robot cleaning the wasteland known as Earth. See them in WALL-E.

Kat Stratford is part of the "out" crowd and proud of it. See them in 10 Things I Hate About You.

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

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.

Ariel knows there's a whole other world above the sea, but exploring it comes at a big price. See them in The Little Mermaid.

Daenerys Targaryen will take what is hers with fire and blood. Thankfully, she has some dragons by her side. See them in Game of Thrones.

She's mostly doom and gloom, but you'd get nowhere without Sadness. See them in Inside Out.