Because you like Stewie Griffin in Family Guy

The vampire that killed Zero Kiryu's family also infected him, and he starts to crave blood, much to his horror. See them in Vampire Knight.

A crabby troll, Karkat Vantas is perpetually angry about his lot in life. See them in Homestuck.

Through raised to be a gentleman, Laurie has a mischievous sense of humor. See them in Little Women.

Rose Tyler may have not done too well in school, but she's certainly holding her own in space. See them in Doctor Who.

Georgina Sparks uses beauty, brains, and power to always get her way. See them in Gossip Girl.

Despite the war-torn world around him, Mal Reynolds still holds onto the shred of hope that life can be more than just living another day. See them in Firefly.

Tifa Lockhart is part mother hen, part martial arts bad-ass. See them in Final Fantasy Series.

Oliver Tate is extremely articulate but hopelessly awkward. That's not a recipe for teenage happiness. See them in Submarine.

Yuri Plisetsky's a hotheaded punk off the ice, incredible artist on it. See them in Yuri on Ice.

Jade Jade Harley might not be the best at reading social cues, but her bravery and selflessness means she's a great friend to have. See them in Homestuck.

Eliot Waugh is the unspoken leader of his group of friends at a school for magic. See them in The Magicians.

Nick Miller might not have a bank account, but he defintely has a lot of love to give. See them in New Girl.