Because you like Seth in Superbad
Caleb Rivers is a bad boy with a good reason for acting out. See them in Pretty Little Liars.
Whatever Sakura Haruno lacks in power, she makes up for in intelligence and bravery. See them in Naruto.
A vampire hunter, Integra Hellsing doesn't tolerate failure, least of all her own. See them in Hellsing.
Miles Morales was bitten by a radioactive spider, put on the webbed spandex, and beat up his first bad guy before his voice changed. See them in Marvel Cinematic Universe.
Ichigo Kurasaki is a short-tempered, strong-willed teen who is deeply protective of those he loves. See them in Bleach.
Fiercely independent and extremely hot-blooded, Ryuko Matoi prefers to work alone. See them in Kill la Kill.
Offred wisely keeps her head down even as she hopes for more. Unfortunately, hope is dangerous in Gilead. See them in The Handmaid's Tale.
A few millennia in the mortal realm have caused DEATH to be quite enamored of life. See them in Discworld.
Marshall Eriksen is a lawyer in love who is enjoying life. See them in How I Met Your Mother.
Kilgrave is a domineering, abusive boyfriend. Then, add in the power of mind control. See them in Marvel Cinematic Universe.
How lucky are we that Arthur Curry, the King of Atlantis, hasn't taken over the surface world? Very! See them in DC Extended Universe.