Thomas Platinaburg (トマス＝プラチナバーグ Tomasu Purachinabāgu?) was one of the 12 Directors of Academy City responsible for funding the Dark Side mercenary group ITEM. He once was injured gravely by Accelerator in Volume 13 and hired a mercenary named Stephanie Gorgeouspalace to assassinate him in Volume 19. However, when Stephanie found out that one of her friends was injured by an ITEM member and that Platinaburg was using Sunazara Chimitsu's life as a bargain tool, she decided to assassinate him instead.