Voldemort , born Tom Riddle, is the main antagonist in the Harry Potter books. He murdered Harry Potter's parents (amongst many other wizards) and tried killing Harry, but failed and disappeared temporarily. Voldemort , referred to by most of the wizarding community as You-Know-Who or He Who Must Not Be Named, is a Dark wizard who terrorised the magical community for more than a decade. Voldemort attacked Harry’s family on Hallowe’en, when Harry was just over a year old. He killed Harry’s... Lord Voldemort was a dark wizard and the prime antagonist of the Harry Potter series. He was born Tom Riddle but changed his name to Lord Voldemort . Learn about the origin, powers, and weaknesses of the Dark Lord in this list of fascinating trivia. From his name anagram to his relation to Harry Potter, discover the secrets of the most feared wizard in the Wizarding World.