Norman Osborn, AKA the Green Goblin, is the only guy on this list whose maniacal laugh rivals The Joker's. He was once your everyday millionaire/brilliant scientist, but his secret formula backfired, rendering him mad. He began wearing a goblin mask, flying on a hover-disc, and throwing poisonous gasses at people. But his most brilliant/divisive accomplishment is one that has gone down in comic book history: He murdered Gwen Stacy, Peter Parker's first love.
