Because you like Peter Brady in The Brady Bunch

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.

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

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

Jack Frost would rather crack a joke or throw a snowball than take anything seriously. See them in Rise of the Guardians.

The adventurous daughter of Port Royal's governor, Elizabeth Swann would rather conspire with pirates than sit pretty in her corset. See them in Pirates of the Caribbean: the Curse of the Black Pearl.

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

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.

Steve Rogers is a good soldier. But above all, he's a good man. See them in Marvel Cinematic Universe.

Gru's more misunderstood than evil, and if he'd rule over the world like he takes care of his three daughters, we'd be in good hands. See them in Despicable Me.

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

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.

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