Because you like Bertie Wooster in Jeeves and Wooster

When the going gets tough, Rick Grimes gets tougher. It's a very useful trait when the world goes to hell. See them in The Walking Dead.

Finn is the world's last human who's "all about" understanding right and wrong. See them in Adventure Time.

She's mostly doom and gloom, but you'd get nowhere without Sadness. See them in Inside Out.

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

Smart, sarcastic, and loyal, Stiles Stilinski doesn't just want to be the sidekick in someone else's life. See them in Teen Wolf.

Arwen has to choose between a life of loneliness or love and inevitible death, both rather unfortunate options. See them in The Lord of the Rings.

As a psychokinetic who was raised in a lab, Eleven is finding Indiana to be a scary world. But at least she's discovered Eggo waffles. See them in Stranger Things.

Alison DiLaurentis believes you're always better off with a really good lie. See them in Pretty Little Liars.

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