Because you like Melanie Stryder in The Host
A bloodsucker, Carlisle Cullen is actually more likely to give you a blood infusion. See them in Twilight.
Velma Dinkley is all about getting results, not taking credit. She is the unsung hero of Mystery Inc. See them in Scooby-Doo.
A powerful priestess, Melisandre is shrouded in mystery and lots of red. See them in Game of Thrones.
Don't tell anyone Kate Austen was under arrest when the plane crashed. See them in Lost.
Introverted Kira Yukimura is sweet, bubbly, and eager to make friends. See them in Teen Wolf.
Sweet, reserved, and intellectual, Cordelia Foxx would do anything for her students. See them in American Horror Story.
Shuri is a genius-level inventor with a wicked sense of humor. See them in Marvel Cinematic Universe.
Arwen has to choose between a life of loneliness or love and inevitible death, both rather unfortunate options. See them in The Lord of the Rings.
Stella Grant is an organized, orderly optimist living with a dangerous disease. See them in Five Feet Apart.
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.
A jealous woman is dangerous. A jealous assassin woman like Elle Driver is even more so. See them in Kill Bill vol. 1.