Because you like Barry Egan in Punch Drunk Love
Ichigo Kurasaki is a short-tempered, strong-willed teen who is deeply protective of those he loves. See them in Bleach.
Wei Shen is an undercover cop on a mission for justice (or at least vengeance). See them in Sleeping Dogs.
Basil Hallward is dominated, soul, brain, and power by Dorian. See them in Dorian Gray.
Despite the dissolution of his state, Prussia hangs on – mooching off his younger brother Germany and reading comics. See them in Axis Powers Hetalia.
Quentin Coldwater has always suspected there was something different about him, and now he has the chance to prove it. See them in The Magicians.
Konata Izumi has a live-now, worry-later view of the world. See them in Lucky Star.
Extremely violent and loyal, Sandor Clegane is called the Hound for a reason. See them in Game of Thrones.
John Watson is haunted by his past (who isn't) but he's starting to branch out with some help from a world class detective. See them in Sherlock.
An opportunistic fugitive-turned-bounty-hunter, Faye Valentine uses both grit and her good looks to get ahead. See them in Cowboy Bebop.
Ciri had a princess upbringing, and some of the facts of common people's lives are a mystery to her. See them in The Witcher.
Javert is an inspector with a single-minded focus: to bring criminals to justice. See them in Les Miserables.