Because you like Karen Smith in Mean Girls
Ultron is security software turned evil mastermind. See them in Marvel Cinematic Universe.
Rupert Giles is a librarian on the outside, fearless evil-fighter on the inside. See them in Buffy the Vampire Slayer.
Reckless, vulgar, loud-mouthed: that's what makes Amethyst so awesome. See them in Steven Universe.
Nothing inspires dread like the mysterious, masked Man in Black. But what's he hiding? See them in The Princess Bride.
Susanna Kaysen is an aspiring writer, despairing young woman who struggles with suicidal thoughts. See them in Girl, Interrupted.
After becoming accepted into the group of popular girls, Tracy Freeland has turned from a sweet and reserved teenager into a monster. See them in thirteen.
Kathryn Merteuil may be a vain sociopath, but you won't be able to look away. See them in Cruel Intentions.
Charlie is a Type A theater director dealing with something out of his control: a painful divorce. See them in Marriage Story.
Otis Milburn's mom is a sex therapist, which doesn't help when it comes to being bullied at school. See them in Sex Education.
A formerly righteous wizard, Saruman has been corrupted by the forces of evil. See them in The Lord of the Rings.
Cisco Ramon is a proud, enthusiastic member of a superhero support team. See them in DC Extended Universe.