The leaders of this greedy bunch appear to be Nute Gunray, Rune Hakko, and Dudley Dofine. We know almost nothing about any of these characters other than their name. We know that some if not all of them are probably of the Nimoudian species. Some might remember early rumors that stated that the Nimoudians looked similar to the Duros that we caught a glimpse of in the Cantina. Some other rumors from Italy stated that they wore big tall hats, seemingly similar to that character in the early "Jabba's Palace" paintings by Ralph McQuarrie. Nothing further has come about to validate these early rumors, and no additional information has surfaced on any of these characters. It will be interesting to learn about the dynamics between the Trade Federation and the Sith. Speaking of Sith, we've heard rumors that there may be such a thing as Sith Knights. Sure you've got your Jedi Masters (on the Jedi Council) and your Jedi Knights, so why not have your Sith Lords, along with some Sith Knights for good measure.