Star Wars: The Old Republic Character Biographies

The biographies section on BioWare Austin's official Star Wars: The Old Republic website now contains information about Coruscant's Supreme Chancellor Janarus, the "brilliant" Darth Jadus, and the bounty hunter Jewl'a Nightbringer. Gotta go with a Sith:
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.

There can be no doubt that Jadus is playing a long game, and the other Dark Lords observe him warily. Until he makes a move, however, there's little to be done.