Baron Gavern Starlock served as both an advisor to Prince Jagoda of R-Duba and held the title of baron. To function as a translator for the prince, he acquired C-3PO.
Starlock's treachery involved assisting the Dorande people in their ambition to seize R-Duba, a betrayal of his own people. However, 3PO, R2-D2, and Kirk Windjammer successfully thwarted his schemes.
BX-00 was the droid in his service, fulfilling roles as his personal driver, protector, and hired killer.