HK-51

The HK-51 series Assassin Droids were dangerous assassin models, highly advanced and built before the Cold War. They were derived from the famous Droid Assassin HK-47 and captured by the Sith Empire's defecting Dread Guard forces. After a strike team from the Republic and the Empire scavenged the vessel, every member of those strike teams took a droid unit for their own crew, some even more then one.