The Good Guy: Frodo Baggins (Elijah Wood)

Regular Quote: "I will take the Ring to Mordor! Though... I do not know the way.."

The Possession: Shortly after the Fellowship leaves Rivendell, Frodo is possessed by a fiendish Middle-Earth demon. Using the ring to turn himself invisible, the creature steals Gandalf's staff, impales him with it and makes for Mordor.

There, he makes a deal with Sauron to share control of all the lands, and enjoys roasted hobbit with stewed dwarf as part of his celebratory meal.

Demonic Dialogue (interrupting Aragorn when he arrives at Mount Doom and makes a speech intended to rally the forces of good against HellSpawnFrodo: "Yo Aragorn, I’m really happy for you, I’ll let you finish, but Sauron  is now the ruler of this place! The ruler!"