Darth Jadus is reclusive and enigmatic, even among the Sith. He is cold, seething, and brilliant, and of all the members of the Dark Council is the least prone to rage, to laugh, to show any sign of the passions that fuel the dark side. Whatever passion Jadus has, whatever fuels him, only he knows. His humanity has long since been purged.
Since his ascension to the council, Jadus has remained removed from the power struggles of his peers, instead concentrating his influence on Imperial Intelligence. Although other Sith control their own spy networks, it is Jadus who oversees the galaxy's largest espionage organization (albeit primarily through advisors and intermediaries). Jadus's servants are never Sith; instead, his favored agents are ordinary citizens uplifted to greatness, terrified of their lord but possessed of an almost religious zealotry.