Grorblorgg Ubsi Eurbeloann was a male Hutt businessman that lived in the twilight years of the New Republic and subsequent First Order-Resistance War, during which he worked as a prominent stakeholder within the starship production facilities of Sienar-Jaemus Fleet Systems, a major arms manufacturer that provided the naval forces of the First Order with starfighters constructed from the same ironic designs of their Imperial predecessors. Being the owner to one of its main subcorporations, Grorblorgg the Hutt was therefore given a seat of the executive board of Sienar-Jaemus, but was also an undercover member of the Sith Eternal, a secretive cult that revered the resurrected Darth Sidious — the last Dark Lord of the Sith. Although the sect itself was sequestered deep within the Unknown Regions, the presence of Sith loyalists like Eurbeloann within the executive board of Sienar-Jaemus Fleet Systems allowed the clandestine funneling of supplies and designs to the desert planet Exegol through various intermediaries, including properties that were controlled by the Hutt, allowing the concealed followers of the former Emperor to construct a military force with the power to bring the galaxy to its knees.
Grorblorgg Ubsi Eurbeloann was a male Hutt with marigold-colored skin and size proportions common to a member of his species. Although his right iris was blue with an amber-colored sclera, however, the Hutt had lost his left eye during a sacrificial ritual to the Sith Order and had it replaced with a cybernetic replicant. In addition, the Hutt wore the dagger-shaped hex charm that served as the insignia of the Sith Eternal inked upon his white underbelly as a tribute to his allegiance, although few outside his fellow adherents to the dark side of the Force understood the significance of this mark.