Because you like Sarah Manning in Orphan Black

Roger is a pansexual alcoholic non-human who will happily lie, cheat and steal to get what he wants. See them in American Dad!.

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.

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.

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

Squidward Tentacles is a pretentious clarinet player in search of peace and quiet. See them in SpongeBob SquarePants.

Years of brutal winters, foreign invasions, and crippling loneliness have left Russia's mental state far from wholly intact. See them in Axis Powers Hetalia.

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.

Lux Lisbon's flirtatious manner attracts a lot of male attention. She relishes the power that her sexuality grants her. See them in The Virgin Suicides.

An inter-dimensional demon, Bill Cipher dreams of a more chaotic Gravity Falls. See them in Gravity Falls.

Stan Marsh is a fourth grader who is the ladies man of his classroom. See them in South Park.

Dallas Winston is headed down a dangerous, criminal road. See them in The Outsiders.

Sid Jenkins is the ultimate underachiever, but he doesn't mind. Well, he pretends he doesn't. See them in Skins.