Because you like The Wicked Witch of the West in The Wizard of Oz

A bloodsucker, Carlisle Cullen is actually more likely to give you a blood infusion. See them in Twilight.

This barber doesn't cut hair. Sweeney Todd sends his clients down a chute to be baked into his partner-in-crime's pies. See them in Sweeney Todd: The Demon Barber of Fleet Street.

Brian Griffin is the most scholarly member of the family—when he's not drunk on martinis. See them in Family Guy.

Cosette is an idealistic woman whose innocence stands in contrast to her harsh childhood. See them in Les Miserables.

A born psychopath, don't expect Michael Myers to understand the difference between right and wrong. See them in Halloween.

Michael Moscovitz is a high school student of few words but a lot of heart. See them in The Princess Diaries.

Small and curious, he is a 50-year-old baby of a peculiar green species with unusual abilities. See them in The Mandalorian.

K-2SO is a blunt and sarcastic reprogrammed Imperial droid who is always up for an adventure. See them in Rogue One.

Michaelangelo is an above-ground crime-fighter by night, and a pizza-eating, sewer-dwelling mutant ninja turtle by day. See them in Teenage Mutant Ninja Turtles.

Iris West is a barista and blogger determined to expose a secret. See them in DC Extended Universe.

Ted Logan wants to party on, but if doesn't get an A+ on his history presentation, he'll flunk out and be sent to a military school in Alaska. See them in Bill & Ted's Excellent Adventure.