Vladimir Propp identified seven recurring character types in folk tales: 1) The Hero who undertakes a quest. 2) The Villain who opposes the Hero. 3) The Donor who aids the Hero. 4) The Princess who is the motivation or reward. 5) The Helper who assists the Hero. 6) The Dispatcher who sends the Hero on the quest. 7) The False Hero who claims the reward. Propp's character types provide a framework for understanding recurring roles in narratives. Not all types will be in every story and some characters may take multiple roles.