X-1 was a Human male assassin who, along with six other men, was hired to participate in Project Omega. Commander Rezi Soresh made this experiment to create the perfect assassin, who would then go on to serve the Galactic Empire. Soresh had their faces surgically altered and wiped their identities from a computer database system. He then started his brutal reconditioning program, which was designed to turn them into mindless servants by removing their past memories and emotions.
At first, X-1 became friends with X-2, X-3, X-4, X-5, X-6, and X-7, the other participants in the training program. However, after Soresh started torturing them with electrocution, X-1, like the other trainees, had his personality and mind changed completely until he felt no emotions. Around 10 BBY, the participants were pitted against each other in combat until only one remained. X-7 easily killed X-1 and earned the right to become Soresh's personal assassin.
X-1 appeared in a flashback sequence in Rebel Force: Target, the first book of the young readers series Star Wars: Rebel Force, published in 2008 and written by Alex Wheeler.
X-1 appeared in a flashback sequence in Rebel Force: Target, the first book of the young readers series Star Wars: Rebel Force, published in 2008 and written by Alex Wheeler.