Because you like Egon Spengler in Ghostbusters

Teddy Sanders loves his frat brothers so much he might never leave school. See them in Neighbors.

Rose Hathaway is a reckless, rebellious smartass who's training to be a royal vampire guardian. See them in Vampire Academy.

Raised to happily follow the rules, Cassia might actually be more rebellious than she thinks she is. See them in Matched .

Dimitri Belikov is a stoic vampire guardian who has the reserve, focus, and discipline of a soldier. See them in Vampire Academy .

Will Herondale is an emotionally distant bad boy with a secret. See them in Clockwork Angel .