Lord Voldemort is the main antagonist of the Harry Potter books and films, portrayed on screen by Ralph Fiennes, and his thin, mocking laugh has become one of the character's most recognisable traits. Clips of that laugh have circulated for years on soundboards, YouTube and TikTok, where creators reuse it to signal villainy, gloating or a dark twist. Louder, cleaned-up versions like this one are popular because they cut through other audio in short edits. Its staying power comes from instant recognition: even without a face on screen, listeners know exactly which villain is laughing.