Doctor ( tactical droid ) Doctor was a modified T - series tactical droid commissioned by Magistrate Passel Argente to serve the Confederacy of Independent Systems during the Clone Wars . A derisive and condescending unit , Doctor worked from a base on Moorja , where he devised Project Instinction — a Confederate initiative to render the agriworld of Ukio useless to the Galactic Republic . Gathering the photosensitive electro - magnetic Moorjan soil , Doctor planned to have the substance dispersed across Ukio ' s renowned planetary shield , causing a perpetual blackout and preventing the growth of crops . The droid predicted that the Ukians would drop their shield to disperse the cloud , which would allow him to land units on the planet ' s surface . Then , devices would be installed that would broadcast signals to living beings on the planet , driving them insane and forcing them to destroy the vital crops . When he was satisfied that there was no chance of failure , Doctor put his plan into effect . Storing the soil on modified seismic tank s , he took a " Lucrehulk " - class battleship to Ukio , and launched Project Instinction . He was met by limited Republic resistance in space , but the Ukians predictably lowered the planetary shield , allowing Doctor to move into the second phase of the Project with a minimum of fuss . However , while the inhabitants of Ukio were being driven insane by Doctor ' s devices , the Confederacy suffered a setback when their positions were overrun by the Jedi Padawan Tyzen Xebec . The Padawan eventually destroyed Doctor ' s devices , and although the tactical droid was able to corner the young Jedi , he was in turn destroyed by Jedi General Keelyvine Reus . Biography . Preparations on Moorja . The modified T - series tactical droid known as " Doctor " served the Confederacy of Independent Systems during the Clone Wars , working under Magistrate Passel Argente of the Corporate Alliance . Argente had commissioned the creation of Doctor , a fact which the droid was fully aware of . Doctor kept a pet , named Seventeen — a non - sentient construct made from various parts of different animals , including the cannok , the blarth , and the boma . The droid worked from a base of command on the ion storm - ridden world of Moorja . There , he had an array of modified seismic tank s collect the Moorjan soil for later use . He was joined at the Confederate base by Argente , who consulted him on their preparations to claim the vital agriworld of Ukio for the Confederacy . The pair discussed the strategy briefly — Argente was impatient to move against Ukio , but Doctor was adamant that they exercise caution and patience while preparing for their assault , lest any unforeseen variable spell failure for their endeavor . Doctor had formulated what he called Project Instinction . The first phase involved a singular battleship carrying the modified seismic tanks that had been collecting Moorjan soil and deploying them just above Ukio ' s renowned planetary shield . The Moorjan soil possessed both electromagnetic and photosensitive properties — to that end , it would both cling to the shield instantly , and move across it as Ukio orbited its sun . Essentially , the dark soil would create a perpetual eclipse on the agriworld , which would cripple the sensitive Ukian crop growth . This would prove damaging to the Galactic Republic , as the Ukian supplies fed both their troopers and the entire Abrion sector , as well as the worlds along the Triellus Trade Route . As a result , the Ukians would be forced to drop their shields , even for an instant , in order to disperse the soil . The second phase of Project Instinction would see shuttles breach the dropped shield and land on Ukio . Devices would then be deployed that would broadcast a neural signal across the planet , causing all living beings to run rampant against their nature , effectively forcing the planet to reduce itself to a chaotic riot . In particular , the native gigaun s would inadvertently stray from their usual paths , and ideally trample the sensitive Ukian crops , destroying the world ' s value and rendering it useless to the Republic . Project Instinction . Doctor had his seismic tanks filled with Moorjan soil , and then loaded on a " Lucrehulk " - class battleship . He then traveled to Ukio , where he put the first phase of his plan into effect . Although Jedi - piloted Delta - 7B " Aethersprite " - class light interceptors briefly engaged his tanks , they were unable to stem the deployment of the soil . The Republic fleet defending Ukio moved to engage Doctor ' s battleship , as the Ukians predictably dropped their shields momentarily . Doctor and his assistants made their way to the surface in three " Sheathipede " - class transport shuttles , and began to deploy the neural devices . Doctor contacted Magistrate Argente directly , and informed him of the progress . The Magistrate was concerned that Doctor was able to contact him in spite of the jamming , but the tactical droid had thought ahead , and was only using frequencies he had not had jammed . Argente then made sure that the devices would not affect Doctor ' s own troops , but the tactical droid dismissed the idea , although the concept piqued his curiosity . The devices were then deployed , and activated , driving the living beings on Ukio into a rage . The Project proceeded as planned , as the world was sent into a violent frenzy . The gigauns acted as predicted , destroying the Ukian crops . However , Republic elements on Ukio ' s surface began to turn the tide when Jedi Padawan Tyzen Xebec and Agricultural Corps member Sanya managed to destroy one of Doctor ' s devices . Xebec then destroyed another of the devices , before approaching Doctor ' s position . The Padawan was knocked from his commandeered Single Trooper Aerial Platform by a projectile , but was able to engage Doctor ' s units . The young Zabrak then decimated the soldiers and destroyed the last Project Instinction device . Doctor picked up a blaster and shot the young Jedi in the shoulder , instantly disarming him . As the tactical droid bore down on his prey , he was decapitated by the Jedi General Keelyvine Reus , who was commanding the Republic task force and had recently arrived on the planet . Reus proceeded to inspect Doctor ' s remains . Although the Republic was able to tactically thwart Doctor ' s efforts , he had created a significant amount of economic turbulence on Ukio . Stock prices tumbled , and Magistrate Argente was merely able to purchase the planet , ultimately securing it for the Confederacy . Characteristics . Doctor was antipathetic toward organic beings , often questioning their multi - varying idiosyncrasies . When Magistrate Argente referenced the Nine Corellian Hells in regards to the desolate and storm - swept wasteland of Moorja , Doctor scorned him , finding such superstition to be contemptuous . Argente responded by labeling Doctor a " man " of science , but Doctor had little time for that concept either — he felt that science was a flawed organic construct , riddled with such other concepts as hope , denial , and expectation . Instead , Doctor found that he was safest to work with numbers , but not in terms of profit as he suspected Argente ' s mind operated — more in terms of variables and probabilities . Doctor was also confused by the illogicality and faulty nature of biological clocks , despairing when his pet Seventeen demanded food before the allotted time . When planning for the assault on Ukio , Doctor dissuaded Argente from any rash action . He felt that since the Confederacy was nearing victory , they should be patient , and make sure that their preparations were well and truly thorough . With this , Doctor hoped that they could claim Ukio with a minimum of fuss . When he finally landed on Ukio , Argente expressed concern that Doctor was still able to communicate with him despite the supposed Confederate jamming , forcing the tactical droid to condescendingly explain the principles of jamming certain frequencies , and not others . Doctor was fully aware of his status as a tactical expert , as he understood that it was for that purpose that he had been originally commissioned by Argente . Although he was unimpressed with the Magistrate ' s limited understanding of his plan , he was curious about the possibility of inventing similar neurological scramblers that could drive automatons berserk . Doctor was so fascinated by the concept that he dedicated twelve whole subroutines of his thought processors to further rumination . In contrast to most T - series droids , Doctor possessed a circular right photoreceptor , which was red . His head also featured several cylindrical protrusions , with glowing yellow bands , as well as a larger apparatus attached to the back of his head . His right arm was also considerably different to that of the standard T - series unit — in contrast to the brown - colored plating on the majority of his " body , " it possessed a more silver appearance and featured various functional tools , including a holoprojector . A smaller arm also extended from the right of his torso , with which he held the chain attached to Seventeen ' s collar . With his left arm , Doctor was able to wield a blaster pistol , which he employed effectively against the Jedi Padawan Tyzen Xebec . Behind the scenes . Doctor made his first appearance in " " , published in 2009 and written by Pablo Hidalgo . The character was introduced in the fifth installment of the comic , and was initially drawn by Jeff Carlisle , although other artists later illustrated the comic .