Because you like Madame Vastra in Doctor Who

A fourth grader without a moral compass, Eric Cartman lives on KFC, Taco Bell, Pizza Hut, and Cheesy Poofs. See them in South Park.

Tina Belcher is on the cusp of puberty, and she has no shame when it comes to boys, butts, and brassieres. See them in Bob's Burgers.

When the going gets tough, Dre Johnson gets tougher. Well, he'd like to think he does. See them in Blackish.

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

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.

Celine's a spontaneous Parisian college student enjoying the night of her life. See them in Before Sunrise.

It turns out the girl of your dreams just might have dreams of her own. See them in (500) Days of Summer.

Tom Hansen is a full-fledged romantic impatiently waiting for his love story. See them in (500) Days of Summer.

Charming and confident, Gus Waters is determined to leave a lasting mark on the world. See them in The Fault in Our Stars.

SpongeBob SquarePants lives in a pineapple under the sea. Absorbent and yellow and porous is he. See them in SpongeBob SquarePants.

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

An ironic hipster with a healthy dose of self-deprecation, Dave strives to be cool at all costs. See them in Homestuck.