Because you like Ishmael in Moby Dick

Bodhi Rook is a defected pilot for the Galactic Empire dead set on destroying the Death Star. See them in Rogue One.

A literal fallen star, Yvaine is temperamental, sarcastic, and a bit on edge. See them in Stardust.

A responsible kid, Hugo Cabret is still capable of flights of fancy. See them in Hugo.

Told her son will one day save the world, Sarah Connor dedicates her life to training him to do just that. See them in The Terminator.

Meticulous Arthur is always prepared, but he may not be ready to be the point man in the criminal world of dream sharing. See them in Inception.

Cyclops shoots lasers out of his eyes, destroying anything in his line of sight. See them in X-Men Series.

Gruff and sarcastic, Detective Harry Dresden use unconventional ways to track down perps, including using magic and the supernatural. See them in The Dresden Files.

Eponine is a scrappy street urchin with a bad case of unrequited love. See them in Les Miserables.

The brilliant and well-adjusted Ender Wiggin is being groomed for the next generation of military leaders to fight alien invaders. See them in Ender's Game.

Jack's big imagination is never limited by his incredibly cramped surroundings. See them in Room.

Prideful and psychotic tendencies combine to make Dr. Eggman a dangerous and villain who will squash anyone in his path. See them in Sonic the Hedgehog.

Milo Thatch is an enthusiastic researcher without cynicism. See them in Atlantis: The Lost Empire.