Supreme Chancellor Bisoge Sargos was the commander of the CIS's most powerful battleship, the Grievous' Fist, and the Supreme Chancellor of the CIS after General Grievous's death. He, a human, was appointed by General Grievous himself to the position after serving as Grievous's personal assistant for two years, carrying out all the dirty work. Sargos was considered Grievous's Fist by many and the appointment of the Captain surprised none, except a few Republic civilians residing on outlying worlds. In one special battle in the CIS Uprising, Sargos proved his strength and stamina as Grievous' Fist by killing two battalions of clone troopers with only two lightsabers, his weapon of choice.