An individual was the apprentice of Supreme Leader Snoke a mysterious, enigmatic figure powerful with the dark side of the Force, who was secretly an artificial genetic strandcast created by the Sith Lord Darth Sidious and his followers. During the New Republic Era, the apprentice studied under Snoke before he became invested into the Skywalker bloodline and settled on Kylo Ren as a new apprentice.
The individual was first mentioned, albeit indirectly, in Star Wars: The Force Awakens: The Visual Dictionary that Kylo Ren was Snoke's most gifted apprentice, implying he had trained more than one. The Star Wars: The Last Jedi The Official Movie Companion later confirmed that Snoke had trained at least one other individual.
- Star Wars: The Force Awakens: The Visual Dictionary
- Star Wars: The Last Jedi The Official Movie Companion
- Ultimate Star Wars, New Edition