The Assassin's Guild, also known as the Assassins Guild, the Assassin Guild, or as the league, was an organization active during the Imperial Era, the members of which were freelance assassins. Prior to entering the service of Emperor Sheev Palpatine, Ochi of Bestoon was a Master Assassin of the league. Sometime later, Chilla Zin, Gee-Ninety, and Loriach, three members of the Guild, were hired by Ochi, now a Sith assassin and a servant of the Sith Lord Darth Vader, to assassinate a pontiff allied with the Crimson Dawn criminal syndicate on Vincorba. After the three performed the job, they were confronted by Ochi and Vader, who revealed that the job had been a test so that they could serve Vader in his quest to destroy Crimson Dawn.