Alysun Celz Alysun Celz was a Human female Jedi Knight who served the Jedi Order during the final decades of the Galactic Republic . In 25 BBY , Celz fell to the dark side and began committing crimes . She attempted to persuade her fellow Jedi Et Rex to join her ; after his refusal , the Dark Jedi framed and arrested him for the crimes . As they were en route to the Jedi Council so that Rex could stand trial , their cruiser , the " Radiant IX " , crashed on the Poison Moon asteroid in the Hoth system . Celz murdered the ship ' s crew , while Rex escaped to the asteroid ' s surface . When Jedi Knight Obi - Wan Kenobi and his Padawan , Anakin Skywalker , investigated the crash , Celz gave them false information about Rex and insisted that he killed the ship ' s crew . She stayed aboard the ship with Skywalker as Kenobi searched for Rex , and eventually began torturing Skywalker with Force lightning . Celz was attacked by Kenobi and Rex , who had revealed the truth about the Dark Jedi . She was successfully incapacitated by Rex and was brought to Coruscant by the three Jedi to stand trial . Biography . Alysun Celz , a Human female , was born during the final decades of the Galactic Republic . She was instructed in the ways of the Force by the Jedi Order , eventually rising to the rank of Jedi Knight . During that time , she befriended fellow Jedi Et Rex . However , in 25 BBY , Celz succumbed to the dark side of the Force and began to commit various crimes . When Celz invited Rex to join her , he refused , and she subsequently framed her former friend . The Dark Jedi took Rex prisoner and attempted to bring him to the Jedi High Council on the galactic capital , Coruscant , piloting the " Consular " - class cruiser " Radiant IX " . En route to Coruscant , the starship ' s power couplings failed due to a flock of mynocks , forcing Celz to crash on the surface of the asteroid Poison Moon , which was located in the Hoth system ' s asteroid field . Celz proceeded to kill the crew with Force lightning , although Rex escaped to the surface . When the " Radiant IX " failed to reach the Temple , the High Council dispatched Jedi Knight Obi - Wan Kenobi and his Padawan , Anakin Skywalker , to find and detain Rex . As they searched the cruiser for signs of life , Celz attacked the two Jedi with a blaster ; however , they disarmed her and questioned her involvement with the deaths of the crew . She deceived Kenobi by affirming that Rex slew the " Radiant IX " crew , and she was left with Skywalker while Kenobi went out on the asteroid ' s surface to search for Rex . Shortly thereafter , Celz attempted to convince Skywalker to take Kenobi ' s vessel and leave , but when the Padawan refused , she began torturing him with Force lightning . However , Kenobi , who had encountered Rex and discovered the truth about Celz , attempted to stop her from attacking his Padawan . Celz caught Kenobi with the lightning , however , and proceeded to torture them both . She was interrupted by Rex , who had thrown a mynock at her so that it would attack and distract her from Kenobi and Skywalker . After he threw a second mynock at her , she attempted to get them off her , which resulted in Celz stunning herself until she was incapacitated . Celz was detained by the Jedi and brought back to the Jedi Council to stand trial . Personality and traits . Alysun Celz was light - skinned with flowing black hair and brown eyes . After falling to the dark side , she attempted to persuade Et Rex to join her and subsequently framed her friend for the crimes she committed when he refused . She enjoyed torturing her victims with Force lightning and was also capable of wielding a blaster . In addition , Celz knew that the pirates who visited the planet Hoth called the name of the asteroid Poison Moon because it resembled one from the world ' s surface . She made it a point to relate this to Anakin Skywalker before she tortured him . Powers and abilities . Celz was sensitive to the Force and earned an elevation to the rank of Jedi Knight . She was proficient in the use of Force lightning , using the power to murder the crew of the " Radiant IX " and torture Anakin Skywalker and Obi - Wan Kenobi . Behind the scenes . Alysun Celz was created by Michael Carriglitto for the short story " " , which appeared in issues 44 – 47 of the " Dark Horse Extra " , a series of monthly four - page comic anthologies . Issues 44 – 47 were published from February to May 2002 , with the art being provided by Adrian Sibar . Celz garnered an entry in " The Complete Star Wars Encyclopedia " in 2008 .