This black astromech droid, was in service to the Galactic Empire shortly after the Battle of Yavin. It was stationed aboard Grand General Cassio Tagge's Executor-class Star Dreadnought, the Annihilator. The droid would later serve Darth Vader on one mission and used him to discover information regarding the Imperial officer Oon-ai and kill him. Vader would later order the droid to self destruct after sending it off into space.