Knag Knag was a Human male doctor who worked for the Galactic Empire during the Galactic Civil War . By the time following the Battle of Yavin in 0 BBY , Doctor Knag was posted as a researcher at the Warren , a top - secret Imperial Research Facility on the planet Dantooine . During his time at the Warren , Knag and many other research scientists went rogue , and supported Colonel Bors Teraud ' s ambitions to overthrow Galactic Emperor Palpatine by creating an army of loyal cyborg followers . However , this attempted coup was foiled by a dutiful citizen who infiltrated the Warren , killed Doctor Knag , and submitted evidence of Colonel Teraud ' s treachery to the Imperial authorities . Biography . A Human male doctor by the name of Knag served the Galactic Empire during the time of the Galactic Civil War . By the time following the Battle of Yavin in 0 BBY , Doctor Knag conducted research at the Warren , a top - secret Imperial Research Facility in the Rielig Steppes region of the Outer Rim world of Dantooine . Colonel Bors Teraud served as both the Warren ' s commanding officer , and as Doctor Knag ' s superior . With his sizeable amount of followers , the megalomaniacal Colonel believed it possible to overthrow Galactic Emperor Palpatine and subvert his control over the entire galaxy . To that end , Colonel Teraud managed to sway Doctor Knag and many other Imperial research scientists and officers to his cause . These Teraud Loyalists , as they were called , betrayed the Empire and supported the Colonel ' s plans to amass an army of mindless cyborgs intent on launching a coup against the Emperor . The Warren descended into chaos after Colonel Teraud and his loyalists banded together to focus on their illicit cybernetics research . A large number of various cyborg creatures , including bol s , dune lizards , huurton s , slice hounds , and tusk cat s were left to freely roam the sprawling underground facility . A number of rogue droids were also left to patrol the Warren ' s countless corridors . Many loyal Imperial stormtroopers and Imperial officers , agitated by this insurrection of cyborgs , droids , and Teraud Loyalists , began attacking everything in sight . In addition to their cybernetics work on many of the Warren ' s creatures , Doctor Knag and the other scientists furthered their unsanctioned research on their fellow Humans . Dirk Maggin for instance , volunteered to be one of Teraud ' s Loyalists . In doing so , Maggin subjected himself to having his mind controlled by a cyborg device , eliminating his free will . A number of other Imperials were subjected to these same mind control implants , furthering Colonel Teraud ' s vision of creating an army of faithful cyborg soldiers . However , this research was not limited to only the brains of Humans and other small creatures . Colonel Teraud also ordered Imperial worker s to carve the brains out of Krayt dragons , massive carnivorous reptiles native to the planet Tatooine . At least one of these Krayt dragon brains was planted inside an altered All Terrain Scout Transport , turning the simple Imperial walker into a cybernetic monstrosity . The extent of this perverse scientific research drove Imperial worker O ' Evitt Piboi to flee the Warren in fear . After escaping the Warren , O ' Evitt Piboi happened across a spacer in the surrounding countryside . Piboi frantically explained to the spacer the horrors of what was occurring inside the corrupted confines of the Imperial Research Facility . To put an end to Colonel Teraud and his band of loyalists , the spacer accepted Piboi ' s passkey and infiltrated the Warren to collect evidence of Colonel Teraud ' s wrongdoing . While exploring the immense confines of the Warren , the spacer battled Colonel Teraud ' s large band of cyborgs , droids , and loyalists . The spacer also happened upon Doctor Knag himself , who wielded his weapon in a violent attempt to subdue the spacer and turn the individual into yet another one of his cyborgs . As he began attacking the spacer , Doctor Knag revealed his true ambition to have his " children " one day take over the facility . Doctor Knag believed himself smarter than Colonel Teraud , and wanted to prove that he was destined to one day rule . However , the doctor ' s self - serving ambitions were put to an end when the spacer succeeded in killing him during the scuffle . Ultimately , the spacer left the Warren , not only having killed Doctor Knag , but also Colonel Teraud . The spacer also acquired hard evidence of the illicit activities conducted within the Warren . This evidence was submitted to the proper Imperial authorities in Theed , capital of the planet Naboo . For their part in putting a stop to the maniacal plans of Colonel Teraud , Doctor Knag , and their other followers , the spacer was commended by Captain Heff as a hero of the Empire . Personality and traits . Doctor Knag had fair skin , gray hair , and blue colored eyes . Equipment . During his time as a researcher at the Warren , Doctor Knag wore a white colored smock with a dark gray waistband , and black colored uniform boots . His personal arsenal consisted of multiple types of blaster pistols and slugthrowers , including a DL - 18 Blaster Pistol , an FWG - 5 flechette pistol , a Striker projectile pistol , and an SE - 14 blaster pistol . A DH - 17 blaster carbine also served as a secondary armament for the doctor . Behind the scenes . Doctor Knag was a non - player character in the 2003 video game " Star Wars Galaxies : An Empire Divided " , a massively multiplayer online role - playing game developed by Sony Online Entertainment and published by LucasArts , prior to its closure on December 15 , 2011 . Players who accepted the Warren quest could encounter Knag inside the Imperial Research Facility on the planet Dantooine . If the player were to attack Knag , then the doctor would reveal his plans to turn the spacer into a cyborg , and seize control of the facility for himself . If the player were to be defeated by Knag , then the doctor would remark that the player was not " salvageable " enough to be turned into a cyborg . Knag ' s inclusion in the Warren was only incidental to the actual quest . Killing him was optional , and it was possible for players to avoid encountering him altogether . However , this article assumes 100 % game completion , and that the player succeeded in killing Doctor Knag . The game ' s directory tree files reveal Knag ' s full name to be Knag Garhun , but the last name of Garhun was never mentioned in the actual game . Therefore , the last name of Garhun is ambiguously canon within the Legends continuity .