Sly Moore, also known as «the Umbaran,» an Umbaran female Force Adept with the alleged ability to manipulate the minds of others, was the Senior Administrative Aide and Chief of Staff of Supreme Chancellor Sheev Palpatine during the final years of the Galactic Republic. She stood at the chancellor’s side along with Vice Chair Mas Amedda on the day Darth Sidious ended the Clone Wars and anointed himself Emperor of the First Galactic Empire. She was one of the few people who knew of Palpatine’s true identity as the Sith Lord Darth Sidious.
A Force-sensitive femalenative of the planetUmbara, Sly Moore served as the Senior Administrative Aide to Supreme ChancellorSheev Palpatine—who was, in secret, Darth Sidious, the Dark Lord of the Sith—following his election to that office, and stood beside both the Chancellor and Vice Chair Mas Amedda atop the Chancellor’s podium in the center of the Galactic Senate Chamber, located in the Senate Building on the planetCoruscant, during sessions of the Galactic Senate. It was rumored that Moore threatened Sei Taria, Chancellor Finis Valorum‘s aide, with blackmail to resign when Taria tried to join Palpatine after Valorum’s removal from office. Her past prior to her association with Palpatine was shrouded in mystery, but she was aware of Palpatine’s dual role as Chancellor and Sith Master, and assisted the Sith‘s rise to power.