Because you like Celine in Before Sunrise

Edward Elric has a quick mind along with a quick temper. See them in Fullmetal Alchemist.

Finn is the world's last human who's "all about" understanding right and wrong. See them in Adventure Time.

If there's any hope of resolving things peacefully, this proud ape leader will have to trust the humans. See them in Dawn of the Planet of the Apes.

Not only could Hellboy avenge your death, he'd also have a sense of humor about it and not let it ruin the rest of his night. See them in Hellboy.

To cope with injustice, Connor finds meaning in his strict and unbreakable code of honor. See them in Assassin's Creed Series.

Kyoya Ootori is possibly the only person who could reasonably go from VP of a school club to ruling the world. See them in Ouran High School Host Club.

Chuck Bass is notorious for his flamboyant sense of style and love of partying. See them in Gossip Girl.

Sterling Archer is a fun-loving, car-driving spy extraordinaire. But one can tell his mother didn't hug him as a child. See them in Archer.

A crabby troll, Karkat Vantas is perpetually angry about his lot in life. See them in Homestuck.

A laid-back stoner, Ben Stone wasn't planning on life's ultimate responsibility. See them in Knocked Up.

He's an eccentric pirate making it up as he goes along. He's Jack Sparrow, savvy? See them in Pirates of the Caribbean: the Curse of the Black Pearl.

Light Yagami has a plan to make a better world, and morals won't stop him. See them in Death Note.