Because you like Amy Pond in Doctor Who
Living with a curse, Kyo Sohma is sick of being treated like garbage his whole life. See them in Fruits Basket.
A formerly timid caterpillar, Kurt Hummel is transforming into a glamorous, confident butterfly. See them in Glee.
Olivia Benson brings order to a world full of chaos. And she never forgets who she's fighting for. See them in Law & Order: Special Victims Unit.
Meat Boy tenaciously throws himself into danger, and when he fails, he immediately gets back up and tries again. See them in Super Meat Boy.
Not only could Hellboy avenge your death, he'd also have a sense of humor about it and not let it ruin the rest of his night. See them in Hellboy.
If you need her, Lisa Simpson will be in her room with her saxophone and a good book. See them in The Simpsons.
Titus Andromedon will show you the ropes, help you with your problems, and sing at you constantly, whether you like it or not. See them in Unbreakable Kimmy Schmidt.
A crabby troll, Karkat Vantas is perpetually angry about his lot in life. See them in Homestuck.
Anyone who's said "Don't worry, it's just a dream" never met Freddy Krueger. See them in A Nightmare on Elm Street.
Holden Caulfield is convinced that the whole adult world is full of phonies. See them in The Catcher in the Rye.
Mark Zuckerberg has achieved everything he's ever wanted, and he's proving to the world how brilliant he is. But happiness eludes him. See them in The Social Network.