Because you like Barry Egan in Punch Drunk Love
Ethan Hunt's mission, should he chose to accept it, is to save the world from impossible threats. See them in Mission: Impossible.
A hardboiled 1940s detective, Cole Phelps is haunted by his past in World War II. See them in L.A. Noire.
The Genie is the perfect buddy, granting every wish we might have and keeping life good-spirited. See them in Aladdin.
Born and raised in the darkness, Bane is determined to have the city totally under his control so that he can demolish it. See them in DC Extended Universe.
Shaggy might be a bit of a slacker, but his heart and his stomach are usually in the right place. See them in Scooby-Doo.
Father to a murdered son and husband to a murdered wife, Maximus Decimus Meridius will have his vengeance. See them in Gladiator.
It turns out the girl of your dreams just might have dreams of her own. See them in (500) Days of Summer.
Khan Noonien Singh is super strong, super smart, and out for revenge. He always seems to be two steps ahead of his enemies. See them in Star Trek Into Darkness.
A gifted detective, Rust Cohle is as dark and twisty as any murderer he chases. See them in True Detective Season 1.
A soulful bass player, Nick O'Leary can't stop sending breakup CDs to his ex. See them in Nick and Norah's Infinite Playlist.
This master marksman may be a villain, but Deadshot's motives aren't quite as selfish as they seem. See them in DC Extended Universe.
A powerful mob boss, Vito Corleone is always making offers people can't refuse. See them in The Godfather.