Nomen Karr Nomen Karr , also known as the Sith Lord Retrost when undercover , was a male Human Jedi Master who was one of the Jedi Order ' s most seasoned veterans during the Cold War between the Republic and the Sith Empire . Karr was also the personal nemesis of the Sith Lord Darth Baras . A gallant Jedi , Karr was known to touch the dark side of the Force while within the lines of the Sith Empire , yet remained true to the Jedi Code . Intent on the exposure of Imperial spies in the Galactic Republic , Karr trained Jaesa Willsaam as his Padawan . His activities caught the notice of Darth Baras , who sent his latest apprentice , the future Emperor ' s Wrath , to destroy him . Biography . Early career . A Force - sensitive Human , Nomen Karr was educated in the ways of the Force by the Jedi Order , attaining the rank of Jedi Master and constructing a green - bladed lightsaber . Although valued for his experience , Nomen Karr was known to challenge the Order ' s rigid precepts in his crusade against evil in the galaxy . When the Sith Empire returned to Republic space , Karr went behind Imperial lines under the alias of " Retrost " in an effort to gather information on the Empire and the Sith who populated it . The determined Karr even dared to touch the dark side during his time behind the Imperial border , but emerged a valiant champion of the light . He was convinced that the Republic had been infiltrated by the Sith Empire , and hoped to prove the Jedi High Council wrong for trusting the word of a Sith . Karr ' s efforts led to the capture of Darth Ekkage , Baras ' s sister . Baras managed to expose Karr before their duel on Nal Hutta ended in stalemate before the latter fled . As a result of Karr ' s betrayal , the two became bitter enemies . Karr was driven to expel the Imperial infiltrators which he believed were hidden throughout Republic and Jedi ranks , he sets himself to find these spies and bring them to justice , though Baras continued to thwart him at every turn . In this endeavor , he spent his time in the undercover area of the Empire . Learning of an Alderaanian young woman with the extraordinary gift of being able to discern a person ' s true nature at a glance , Nomen Karr immediately claimed her for the Order and as his student . He dedicated his life to her tutelage and protection , hoping she could expose those that Karr believed to be a threat to the Galactic Republic or the Jedi Order . However , the Jedi High Council continued to remain skeptical that Karr ' s Padawan ' s power was foolproof . As part of their training , he sent his apprentice to Tatooine to be trained by the respected Jedi Master Yonlach . Last days . During the Cold War , Karr learned that his old enemy , Darth Baras , had acquired an extraordinarily strong new apprentice . As part of his continued surveillance of Baras ' assets , Karr ordered a Republic orbital monitoring station in Hutt Space to monitor and track the movements of the apprentice ' s ship . The apprentice was headed to Balmorra and Nar Shaddaa , which Karr assumed to be providing extraction for Baras ' agents . When Baras and his apprentice found out about the surveillance , the latter arrived at the listening station and put a violent end to the spy stationed there . Karr , monitoring the station via hologram , pleaded for the lives of Hirosho and other technicians . The Sith refused his plea and slaughtered them before Karr ' s eyes . Horrified by what he has just seen , Karr declared the Warrior to be every bit Baras ' minion . He then calmed himself , telling the apprentice that he had no idea of Karr ' s plans But the Sith surprised him yet again , revealing that he knew of his Padawan and claimed her powers to be a sham . Briefly unsettled by the revelation , Karr declared that he would protect his Padawan from the taint of the Sith , even though the Warrior promised " to keep her skull as a trophy . " Proclaiming the Sith to be unreasonable , Karr summoned a squad of elite troopers , claiming them to be the Republic ' s finest and demanded the Sith surrender , but was refused . The apprentice swiftly slaughtered the attack squad . Noting how ferocious the Warrior was , Karr stated that he now had insight for their eventual confrontation . The listening post incident proved instrumental in Karr ' s undoing . Noting how protective Karr was of his Padawan , Baras ordered his apprentice to find and kill the people who had been closest to her , starting with Yonlach on Tatooine , and eventually her parents on Alderaan . Baras ' plan was to unbalance Karr ' s apprentice and draw her out so she could be killed . The plan ultimately proved successful and Jaesa contacted Baras ' apprentice to arrange a one - on - one meeting . Karr soon discovered her arrangement and branded it foolish and rash . He forbid her to attend the meeting , and in her place sent a pair of trained Jedi Knights , Ulldin and Zylixx , to end the threat permanently . The pair proved no match for Baras ' apprentice , and were quickly defeated . Tiring of the endless intrigues , Karr then contacted Baras directly to arrange a duel to finally end their conflict . The stage was set for a final battle at the site of Karr ' s betrayal years earlier . But because Baras feared a trap , and because he knew of his apprentice ' s great strength , Baras sent the Warrior in his place . Karr was sorely disappointed to see the Warrior alive and in place of Baras , but he was confident that he would be able to defeat the apprentice and expose Baras ' network of spies . But the Warrior proved to be stronger than he expected , both physically and in the ways of the dark side . Karr succumbed to the Warrior ' s taunts and turned to the dark side for the strength to win their fight . The Jedi Master failed and was defeated by Baras ' agent . Mortally wounded , Karr felt that the dark side has underestimated him , and tried to fight his way back to the light side and die in order to protect Willsaam , but Imperial operatives dispatched by Baras were able to stabilize him so that the Warrior could use him as bait to draw Willsaam into the trap . In a moment of true darkness , the Wrath chose to torture Karr , promising he would " suffer as no one has ever suffered " . The ruse was successful and Jaesa arrived to witness her master twisted by the dark side into something she couldn ' t recognize as he spewed his hate for both Baras and his apprentice . At first she considered the possibility that Karr had been hiding this all along before she accused the Sith of corrupting her Master . The Warrior told her that the only way to find the truth is to use her power on him . Willsaam complied and saw these dark traits within Karr but refused to believe it . The Warrior continued to taunt her into giving into her anger as well and lash out . She engaged the Sith Warrior in fair combat , but she turned out to be no match against the Sith apprentice . Surrendering herself and following the path towards the dark side , Jaesa became the Warrior ' s new apprentice . Karr tried to fight the dark side within him , and show part of himself in the light side . He tried to tell his apprentice that she was not fully trained to fight a Sith , but Willsaam wanted to follow the Sith Warrior ' s path since she was fond of this new power - using brutality to force the truth to the surface - and , as the Warrior pointed out , Karr was a master of the light himself but had failed as much as she had . As Willsaam was concerned of what to do with her former master , the Warrior eventually ordered her to kill him as her first test in becoming strong in the dark side . Feeling regret for facilitating his apprentice ' s corruption and letting himself become a slave to the dark side , Karr pleaded her not to become a murderer , but Willsaam retorted that the Jedi are hypocrites for taking lives themselves . She then immediately decapitated and killed her former master . Personality and traits . Being a Jedi Master , Nomen Karr demonstrated unwavering devotion to the light side of the Force . It was this that drove him to try and expose the Imperial infiltrators in hiding across the galaxy , despite Baras ' constant interference . However , he arrogantly believed in the light ' s superiority over the dark side , showing a darker sense of pride . Beneath his noble and passionless demeanor lay a hidden dark persona . It was this dark reflection that Karr assumed he left behind after his infiltration of the Sith , but was later brought out by the Emperor ' s Wrath . Giving into his anger in the belief that it would defeat his enemy , he showed he was a hypocrite to the Jedi teachings . The dark side clouding his mind , he began to let out all his repressed hatred for both Baras and his apprentice . But in the final moments of his life , Karr began to feel remorse for his errors . Powers and abilities . Nomen Karr was a master of lightsaber combat . With the Force , he could leap back and forth with such speed when between two opponents and throw a lightsaber . On occasion , he would use Force push to distance himself a few feet from an adversary before closing back into the duel . When he fell to the dark side during his duel with the Sith Warrior , Karr learned the technique of Force choke , lightning shield , and Force rage . Behind the scenes . In " The Old Republic " , if the player chooses the dark side dialogue , he / she would be the one to kill Nomen Karr since Baras wanted him dead instead of letting Jaesa kill him . The player could also send Karr to Dromund Kaas and have Baras decide his fate , which pleases the Sith Lord greatly . Nomen Karr is voiced by actor Michael Gregory in " Star Wars : The Old Republic " , who also provides the voice for Harron Tavus . Light side story . If the player chooses to remain with the light side dialogue options , Karr ' s responses would be different from that from the dark side story . While Karr watches the Sith Warrior spare Hirosho and the other technicians in the listening station via hologram , he is taken aback , stating that " your temperance is remarkable . " That does not prevent him from bringing out the Republic soldiers on the Warrior , however . After the Warrior defeats them , he / she attempts to convince Karr that they can finish this peacefully . Karr acknowledges that he wishes it was possible before cutting transmission . In Karr ' s safe house on Hutta , the Warrior tries once again to explain that he / she has not come to fight Karr , but the Jedi Master will not listen . After the first part of the fight , Karr digs deeper with the dark side . The Warrior tries to persuade him to give up , but Karr refuses and attacks again and again . Soon , Karr is seriously wounded and prefers to die , that way no one would reach Jaesa . The Warrior tries to convince him that he / she is not here to kill Jaesa , but Karr believes it to be lies before falling into unconsciousness . Imperial troops arrive and patch him back to health . After Karr awakes , shackled to a chair , he assumes that the Warrior saved him so Jaesa would believe he / she was " pure , " which is true , in the case of lightsider s . When Jaesa arrives and sees Karr in his maddened state , the Warrior tells her to use her power on Karr , to see what he really is . Reluctantly , Jaesa does so and finds " pride and . . . envy and hate . . . and vengeance " in her Master . Karr argues that it ' s all a trick and tells Jaesa to use the power on the Warrior , to which the Sith agrees . Jaesa sees " mercy . . . and fairness and . . . even perhaps compassion . " She knows this now because the Warrior had previously spared Master Yonlach on Tatooine and her parents on Alderaan . Karr is unconvinced , saying that the Sith is trying to disguise both of them so Jaesa would " doubt " her powers . Jaesa is confused , believing that both Karr and the Warrior are trying to drive her mad . Karr pins the blame on Darth Baras ' manipulation and orders Jaesa to kill the Sith Warrior so that she can see . The Warrior does not intend to fight , but a lost Jaesa activates her lightsaber and tells her opponent to raise his / her defenses . Jaesa is defeated and the Warrior holds back the killing blow . Jaesa now sees that the Warrior ' s sense of darkness is a " mask " and Karr holds a " much . . . " uglier " one . " The Warrior assures her that the Jedi Master ' s Force connection is " flawed . " After having putting through many lies , including those from the Jedi , Jaesa sees that the Warrior has the power to reveal someone ' s " true nature . " She agrees to become the Warrior ' s Sith apprentice , but in a lighter sense of the term . Karr is detained by the Imperial soldiers either to Baras , left to his " misery , " or to the Jedi Temple on Tython to atone for what he has done . Angry , he will see that Jaesa is disavowed and labeled an enemy of the Jedi Order , but she feels that he " took me as far as you were able . " He is led away , ranting . On the " Fury " - class Imperial interceptor , if Karr is left alone or taken to Tython , the Warrior has the option to lie to Baras that the Jedi is dead , gaining affection points from Jaesa and Vette . Even if he is taken to Tython for healing , his old apprentice , Somminick Timmns , states that his emotions have since been stunted , and he no longer communes with the Force , suggesting that he had a crisis of faith .