Because you like Amy Pond in Doctor Who

Casey Gardner is an angsty teenage girl with quite a bit of sass that keeps getting her in trouble. See them in Atypical.

Be careful around Marie Laveau. There's no one more vengeful than a double-crossed voodoo queen. See them in American Horror Story.

Thor is Asgardian nobility who is tickled by how us earthlings live. See them in Marvel Cinematic Universe.

Major Marquis Warren is a talkative, sharp-eyed, and cold-hearted Civil War soldier-turned-bounty hunter. See them in The Hateful Eight.

Stuck in space, Ryan Stone will either make it back to Earth and have one hell of a story to tell. Or she will burn into the ether. See them in Gravity.

With her consciousness so easily shifted between bodies, Motoko Kusanagi is left unsure of who or what she really is. See them in Ghost in the Shell.

Max Fischer is the President of every club who's fighting to save Latin at his school and kiss his teacher. See them in Rushmore.

Brilliant, violent, and only a little insane, the Joker doesn't listen to anyone except the voices in his head. See them in DC Extended Universe.

Tony Stark's interests include cocktails, beautiful women, particle physics, and saving the world. See them in Marvel Cinematic Universe.

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

Steven Universe is an excitable youth who likes junk food and trying to save the world. See them in Steven Universe.