Because you like Norman Bates in Bates Motel
Marge Simpson is a mostly happy housewife and subscriber to Sponge and Vacuum Magazine. See them in The Simpsons.
Evan is a sensible kid, but being sensible isn't going to help him lose his virginity. See them in Superbad.
Anastasia Steele's new boyfriend Christian might as well come with a warning label that reads "Beware: Severe Issues That Might Warrant a Trip to Dr. Phil." See them in Fifty Shades of Grey.
Kim Kelly is a high school bully who's normally in a bad mood. But there's a softer side to her. See them in Freaks and Geeks.
Kevin Khatchadourian is a disturbed, affect-less teen on a dark path. See them in We Need to Talk About Kevin.
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.
White Witch's heart is as frozen as the land she rules. See them in The Chronicles of Narnia.
Caitlin Snow believes that burying herself in science is the best way to save the day or to mend a broken heart. See them in DC Extended Universe.
Introverted Kira Yukimura is sweet, bubbly, and eager to make friends. See them in Teen Wolf.
A cruel pirate, Captain Hook still fancies himself a gentleman. See them in Peter Pan.