Because you like Travis Bickle in Taxi Driver
Armed guards, FBI agents, notorious serial killers – Hannibal Lecter has bested them all, with time to finish dessert afterwards. See them in The Silence of the Lambs.
Imperator Furiosa is a badass patriarchy toppler. She'll do anything to secure a better, freer future for the women she cares for. See them in Mad Max: Fury Road.
James Gordon happens to be the one guy in Gotham City with proper morals who doesn't also run around in a cape. See them in DC Extended Universe.
A working class janitor with a world-class mind, Will Hunting is cocky, brash, and combative about his future. See them in Good Will Hunting.
Big Boss is a disillusioned mercenary commander who wants to create a world for soldiers (and soldiers alone). See them in Metal Gear Series.
Raiden is an efficient soldier haunted by his repressed past. See them in Metal Gear Series.
If Lisbeth Salander can hurt a bastard who deserves it by digging up stuff about him, she feels good. See them in The Girl with the Dragon Tattoo.
This barber doesn't cut hair. Sweeney Todd sends his clients down a chute to be baked into his partner-in-crime's pies. See them in Sweeney Todd: The Demon Barber of Fleet Street.
Clarice Starling is patiently working with one serial killer to stop another. See them in The Silence of the Lambs.
Louis de Pointe du Lac is wanting to find a way of living that doesn't make him miserable. See them in Interview with the Vampire: The Vampire Chronicles.
Seth is short-tempered, crude, and terrible at school, but hopefully there's nothing an epic party can't fix. See them in Superbad.
Liu Kang spends his days training his body and spirit, seeking to become the ultimate warrior. See them in Mortal Kombat.