Because you like Cookie Monster in Sesame Street
Herion is Mark Renton's favorite drug. He sniffs it, smokes it, swallows it, sticks it up his arse, and injects it into his veins. See them in Trainspotting.
A conflicted small-town preacher, Jesse Custer leaves an unexpectedly bloody path in his wake. See them in Preacher.
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.
Trying to get through school without being a burden to anyone, Tohru Honda stays cheerful despite her difficulties. See them in Fruits Basket.
A caring, curious, and considerate android, Vision could crush your skull if he had to. But he'd rather not. See them in Marvel Cinematic Universe.
Lucille Bluth doesn't understand the question, and she won't respond to it. And you're probably better off. See them in Arrested Development.
Red doesn't like to explain herself. She wants her work to do the talking. See them in Transistor.
For Sly Cooper, stealing isn't just about the haul. It's also about the journey. See them in Sly Cooper.
Told her son will one day save the world, Sarah Connor dedicates her life to training him to do just that. See them in The Terminator.
An underdog with nothing left to lose, Donnie Creed has everything to prove. See them in Creed.
China has five thousand years of history, and he's optimistic he'll win over the Allied Powers to the wisdom of his ways. See them in Axis Powers Hetalia.