Cygnus

Administrator Cygnus, Formerly Lord Cygnus, is one of the only members of the Sith Empire not to go into hiding. Acting as an ambassador to the Hutt Cartell when the Empire fell, Cygnus officially renounced his allegiance to the Sith, and took Citizenship in the Cartel. The Jedi Order has filed multiple complaints with the Hutts, but Cygnus has clearly amassed an impressive amount of wealth, and also has powerful friends, and thus he is now an accepted member of the Hutt Oligarchy.
In all known interactions, Cygnus is always erudite, refined, and unfailingly polite. Most people find it easier to believe he was never a Sith Lord, than to believe he still harbors allegiance to the Dark Side.
Cygnus is actively involved in the Hutt activities in Imperial territory.