Emperor Palpatine, played by Ian McDiarmid, is the main Sith villain across the Star Wars films, first appearing in 1980 and returning as the scheming Emperor in Return of the Jedi in 1983. His wheezing, delighted laugh became one of his trademarks, alongside lightning powers and lines about the dark side. Clips of the laugh spread on YouTube and soundboards in the 2010s as a reaction for evil plans, often paired in edits with the famous Darth Vader scream. It remains popular because one short cackle instantly explains a character's smug, villainous intent.