Because you like Captain Haddock in The Adventures of Tintin

Seth is short-tempered, crude, and terrible at school, but hopefully there's nothing an epic party can't fix. See them in Superbad.

On the outside, Gwen seems meek and calm. But she has an inner core of steel. See them in Merlin.

Although Jareth seems like he's just a harmless romantic, his powers make him a formidable foe. See them in Labyrinth.

An exuberant prankster, Naruto Uzumaki craves acknowledgement of any kind. See them in Naruto.

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.

Cosmo Kramer is an eccentric schemer whom you might know better as the "Assman." See them in Seinfeld.

John Bender's interests include marijuana, fighting, and breaking the rules. See them in The Breakfast Club.

In constant agony, Ava Starr will do anything to give up the superpowers that are slowly killing her. See them in Marvel Cinematic Universe.

Ava may just be the perfect woman. So long as she can pass a Turing test. See them in Ex Machina.

Yuki Cross is a cheerful, funny, bold young woman with hidden insecurities. See them in Vampire Knight.

After years of living vicariously through other people's heroic stories, Wade Watts is about to become a hero himself. See them in Ready Player One.