CT-782 or Chucky was arguably the most evil Separatist collaborator in the history of the Galactic Republic. Fed up with the abus and rejection he endured at the hands of his instructor, CT-782 massacared his fellow squadmates and escaped. He later joined the Separatists' Clone Collaborator Corps and rose to lead it. Chucky encountered his first Jedi while attempting to take over a volcano-covered world in the Outer Rim. The Jedi, who ironically was his squad's Training General, attempted to reason with him, but Chucky slew him and officially became the Jedi's worst enemy behind the Sith.