1B-7, vocalized as One-Bee-Seven, functioned as a medical droid under the ownership of the One Sith's Dark Lord, Darth Krayt. Darth Wyyrlok tasked 1B-7 with aiding the One Sith operative, Nyss Nenn, in extracting the Iteration of the Jedi Knight known as Jaden Korr from his dormant state within a Spaarti cloning cylinder.