He-Who-Must-Not-Be-Named. Voldemort Is his past, present, and future. The guy without a nose in our fanart Harry Potter Lord Voldemort Sticker is the main antagonist of J.K. Rowling's Harry Potter. The Half-Blood Prince is a dark wizard who desires to gain power and control over the wizarding world and is known for his cruel nature. Voldemort was born Tom Marvolo Riddle. He attended Hogwarts School of Witchcraft and Wizardry, where he was sorted into the Slytherin house and quickly gained a reputation for his intelligence, ambition, and manipulation of others.