Tholian Holdfast (Space Trek)

The Tholian Holfast is the governing body of the Tholian species. The Tholian Holdfast comprises a small number of worlds in former Klingon space, bordering the Klingon Empire, Romulan Star Empire, and Federation. The race originated in another galaxy entirely, where they were once masters but were overthrown by the Seltorians, their erstwhile subordinates.