Because you like Barry Egan in Punch Drunk Love
Cinderella will sacrifice herself to keep her family's memory alive. See them in Cinderella (Live Action).
Todd Anderson has some “big shoes to fill” at Welton Academy, and new English teacher Mr. Keating isn’t letting him get away with staying silent in class. See them in Dead Poets Society.
Although Theon Greyjoy is treated well, he's still essentially a hostage. And that isn't so easy for him to forgive. See them in Game of Thrones.
V is a violent anarchist with literally nothing left to lose. But, he might have a point. See them in V for Vendetta.
Leonard Hofstadter is the normal one among his scientist friends, though in fairness that's a low bar. See them in The Big Bang Theory.
Sephiroth wants nothing more than to seize the power of the Lifestream in order to become a god. See them in Final Fantasy Series.
Don't ask the ruthless queen of the Tokyo underworld any questions unless you're fine with losing a limb. See them in Kill Bill vol. 1.
Poussey Washington is a former army brat who loves to read and loves her friends. See them in Orange Is The New Black.
Hiccup Haddock III may be the only Viking nerd in recorded history. See them in How to Train Your Dragon.
Juliet Capulet falls head over heels for her rival family's resident sweet talker, Romeo. See them in Romeo & Juliet.