Because you like Jenna Maroney in 30 Rock

Peppy and optimistic, Joy is totally lost when it comes to dealing with Sadness. See them in Inside Out.

Underneath her brassy, sarcastic exterior, Olive Penderghast is more sensitive than she pretends to be. See them in Easy A.

Like her trusty sword, Arya Stark is tiny but vicious. See them in Game of Thrones.

Charlie Kelmeckis is a wallflower who's starting to blossom into something more. See them in The Perks of Being a Wallflower.

Everyone Barney Stinson knows is getting married or pregnant. But he's just getting more awesome. See them in How I Met Your Mother.

Armin Arlert was wrong. This world hasn't become hell; it's been hell. He just couldn't see it before. See them in Attack on Titan.

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.

Dipper Pines is investigating a truly strange town during the world's wildest summer vacation. See them in Gravity Falls.

Smart, sarcastic, and loyal, Stiles Stilinski doesn't just want to be the sidekick in someone else's life. See them in Teen Wolf.

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

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

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