Character types' - Propp's Theory
Hero - The Protagonist of the narrative who must go on a quest to overcome an obstacle and receive the princess as a reward
Villain - The obstacle that blocks the hero
Princess - The reward for the hero overcoming the obstacle; it is what the hero is questing for and often the driving force of the narrative
Helper - Someone (or something) that directly aids the hero in their quest; usually follows them on the quest
Donor - Someone that gives the hero something to help on their quest
Dispatcher - The individual who sets the hero on the quest and gives him the instructions to complete it
False Hero - A character who appears at the start to be a hero and attempting to also overcome the villain, but is revealed later to be another form of obstacle or fraud