Because you like Beetlejuice in Beetlejuice
Frederick Frankenstein is an eccentric (O.K., maybe a little insane) professor who is excited to be delving into his family's past. See them in Young Frankenstein.
The Ice King is lonely and looking for a princess to sweep him off his feet. See them in Adventure Time.
Scooby-Doo always keeps his priorities in order: eat snacks first, solve mysteries later. See them in Scooby-Doo.
Cyclops shoots lasers out of his eyes, destroying anything in his line of sight. See them in X-Men Series.
Philip J. Fry accidentally cryogenically froze himself for a millennium. See them in Futurama.
Dorothy Gale is a down-home Kansas girl in a bizarre fantasy land with beautiful red shoes. See them in The Wizard of Oz.
A suave manipulator, Sebastian Valmont is valiantly fighting off a developing conscience. See them in Cruel Intentions.
It turns out breaking open an ancient cursed statue will do funny things to a girl like Enchantress. See them in Suicide Squad.
Gordie Lachance never had any friends later on like the ones he had when I was twelve. See them in Stand By Me.
Although she's the queen of killer comebacks and one-liners, Janis Ian is honest about her feelings and cares deeply about her friends. See them in Mean Girls.
The fearless bodyguard of Rick Flag, Katana will ruthlessly kill her enemies, trapping their souls in her sword. See them in DC Extended Universe.
Patrick Verona is a bad boy who's after a tough girl. See them in 10 Things I Hate About You.