Cadac was a tribal clan leader on the planet of Kesh. He established a separate clan, the Cadacite, which diverged from the Lost Tribe of Sith and was known to be a powerful yet unconventional Force user. It was his belief that the solution to the Jedi domination of the galaxy was to reconstitute the Sith Empire and to join the Lost Tribe of Sith and the One Sith together to form this organization. His dreams would come to fruition after his death.