Tom Marvolo Riddle (better known as Voldemort, and also known as He Who Must Not Be Named, You-Know-Who and Chief Death Eater, and as the Dark Lord to his followers) is a wizard and one of the most evil of his kind. Head of an organisation he formed called the Death Eaters, he is highly efficient in the unforgivable curses, especially in the Avada Kedavra curse. Voldemort is an enemy of Harry Potter, whose parents James and Lily Potter he murdered on Hallowe'en.
Due to his fearsome reputation, most wizards fear to speak his name.
- Harry Potter and the Philosopher's Stone
- Harry Potter and the Chamber of Secrets
- Harry Potter and the Goblet of Fire
- Harry Potter and the Order of the Phoenix
- Harry Potter and the Half-Blood Prince
- Harry Potter and the Deathly Hallows