Taken From Agrusss Biograpphy on Wookieepedia: Agruss, also known as the Keeper was the head of the Kadavo slave .

There is a traitor among the clones on Christophsis! A clone keeps on telling the Sepratists the Republics next move and battle plans resulting in heavy loss.

Forced to slave away in the mines alongside Rex and the Togrutan colonists of Kiros, and taunted by the facilitys cruel warden Agruss and the guards, Obi-Wan .