Sly Moore, also known as «the Umbaran,» was an Umbaran female Force Adept with the ability to manipulate the minds of others. Moore served as 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. Moore was one of the few people who knew of Palpatine’s true identity as the Sith Lord Darth Sidious.

Putting the finishing touches on Darth Vader #17 we learn the true secret of not only Sly Moore and Sidious but also the revelation of Ochi of Bestoon who shocks the world.