Rig Nema Rig Nema was a female Jedi doctor who served the Jedi Order during the Clone Wars , the full - scale conflict between the Galactic Republic and the Confederacy of Independent Systems . At some time during the war , one of Doctor Nema ' s patients was none other than Grand Master Yoda , who had started to hear the disembodied voice of the late Master Qui - Gon Jinn , much to the Jedi Council ' s concern . Biography . A female humanoid , Rig Nema was a Jedi who served as a doctor at the Jedi Temple on Coruscant towards the end of the Galactic Republic . During the Clone Wars , Doctor Nema was in charge of an important patient : Yoda , the Grand Master of the Jedi Order . Some time earlier , the diminutive Master claimed to have spoken with Qui - Gon Jinn , who had been murdered by the Sith Lord Darth Maul during the Battle of Naboo . The rest of the Jedi Council was concerned about Yoda ' s health and sanity . Jinn was dead and , as far as they knew , it was impossible for anyone , even a Jedi , to retain their individuality after death . Master Ki - Adi - Mundi suspected that what was happening to the Grand Master was " a deception by the Sith . " In the Jedi Temple medical ward , Doctor Nema examined Yoda several times , and found that the Grand Master was in good health . However , she detected that a part of his brain was more active than normal , but deduced that it was probably due to Yoda ' s advanced age . Far from being reassured , Master Mundi warned Mace Windu and Obi - Wan Kenobi that the powerful bond between Yoda and Count Dooku — who had been trained by the Grand Master — could have allowed the Sith Lord to get into Yoda ' s mind and manipulate him . Nema subsequently suggested to perform a deprivation ritual , so Yoda could find the answers he was looking for . It was a risky procedure that consisted in putting Yoda into a tank and progressively depriving him of oxygen . This way he would get close to death and enter a deep meditative state . During the ritual , Yoda heard Jinn ' s voice once more ; it told him to go to the planet of Dagobah in order to complete what Jinn could not . Jinn ' s voice also advised him to travel alone and to not tell anyone about his destination . When Yoda ' s vital signs became critical , Kenobi ordered Nema to interrupt the procedure , which she eventually did . Nema , Kenobi , Mundi , and Jedi Knight Anakin Skywalker then contacted Master Windu via hologram . Kenobi informed him that Yoda was convinced that he had talked to the dead , which led Windu to ask Nema her opinion . The Jedi doctor declared that Yoda was physically fine , but that she was not so sure about his spiritual state . Back in the medical bay , Doctor Nema advised Yoda to rest , and then left the room when Skywalker came to see the Grand Master , as the latter had requested . While she was away , Yoda fled the Jedi Temple with the Jedi Knight ' s help . Nema and Windu could do nothing but watch Yoda leave aboard his starfighter with Skywalker ' s astromech droid , R2 - D2 . Personality and traits . Doctor Nema was a humanoid female of an unidentified species with golden eye s and yellow skin . She was meticulous and professional in her work . When Yoda was her patient , she examined him several times to confirm her diagnosis , constantly checked his vital signs , and regularly made her report to the Jedi Council about his health . She did not hesitate to suggest dangerous procedures , like the deprivation ritual , in order to help her patient . As soon as the situation became too alarming for Yoda ' s life , Master Kenobi ordered Nema to immediately stop the ritual , which she was reluctant to do . She had warned about the risks the deprivation ritual could represent , and seemed to be surprised when she was told to interrupt it . Kenobi insisted , and she complied . Powers and abilities . Nema was a Jedi , carrying a green - bladed lightsaber , as well as a doctor . She used her medical expertise and knowledge of the Force to help Master Yoda , however , she admitted that she was not familiar with his species ' biology . Behind the scenes . Jedi Doctor Rig Nema ' s first and only appearance was in " Voices , " the eleventh episode of , the sixth and final season of " " . She was voiced by Catherine Taber , who also portrayed Senator Padmé Amidala in the series . Her first name is never mentioned in the episode , as she is only called " Doctor Nema " or simply " Doctor . " It is revealed in the end credits , the StarWars . com episode guide , and her Databank entry . The character ' s physical appearance was actually based on an early concept design for Mace Windu . It was drawn by Iain McCaig during pre - production for , before Samuel L . Jackson was cast .