Liv Chenka Liv Chenka was a female human originally from the planet Kaldor , and a companion of the Doctor in his seventh and ( primarily ) eighth incarnations . Before encountering the Doctor , she worked as a spaceship medical technician . Biography . Childhood . Liv ' s father took her hiking through the mountains on Kaldor . ( AUDIO : " The Sonomancer " ) Encounter with the Seventh Doctor . Liv served aboard " The Lorelei " cargo spaceship . She encountered the Seventh Doctor shortly before a group of Voc robots began to attack the crew of her ship . She helped the Doctor to discover that the Voc robots were not behind the attacks , and found that the ship ' s security chief , Farel , dressed as a robot when instigating an attack . Liv and the Doctor then prevented Farel from crashing the " Lorelei " into Ventalis . Liv stayed behind on Ventalis after the Doctor had departed . ( AUDIO : " Robophobia " ) The Doctor ' s TARDIS took a liking to Chenka during this encounter and talked with the Doctor afterward . She asked the Doctor if he could take on Chenka as his companion , he replied , " Another time perhaps , but not now . " ( AUDIO : " Black and White " ) Meeting the Eighth Doctor . Liv was present on Nixyce VII when the Dalek s invaded . She was used by the Dalek time controller to be a source of compassion amongst the natives of Nixyce VII . It was here she encountered the Doctor for the second time , although she did not recognise him at first because he had regenerated since they last met . Eventually she was convinced of his identity , and she helped in with his plans to turn the Daleks against an Eminence fleet nearby . ( AUDIO : " The Traitor " ) Liv eventually fled the Dalek invasion , in the bowels of a cargo ship , but suffered severe radiation poisoning as a result , which compromised her metabolism , and condemned her to death , be it through embolism or renal failure , whichever would strike first . ( AUDIO : " The Reviled " ) Because of this , she signed up as a med - tech on the science vessel " Orpheus " and went into cryo - sleep on board for a thousand years . She awoke when the " Orpheus " had reached the edge of the universe . Liv once again met the Doctor on board the " Orpheus " , shortly before it came under attack from the Eminence , and it began to possess the crew . Liv planned on blowing herself up next to a piece of the Eminence in order to stop its plan , but was rescued by the Doctor and Molly O ' Sullivan . She promptly joined them on their adventures . ( AUDIO : " Time ' s Horizon " ) Travels with the Eighth Doctor and Molly O ' Sullivan . Liv travelled with the Doctor to London in the 1970s , where she helped the Doctor to defeat and the Eminence . After they were defeated , the Doctor made Liv stay behind in London with his companion Molly at his home in Baker Street , due the fact that they had met out of order — he had to play out the events in which Liv first met him on Nixyce VII . ( AUDIO : " Eyes of the Master " ) When Molly O ' Sullivan disappeared , Liv suspected the worst and was able to fashion a crude communications device from the technology of the era , and sent out a distress call which was intercepted by Coordinator Narvin of the Celestial Intervention Agency . ( AUDIO : " The Death of Hope " ) Liv was later sent by Narvin to help the Doctor fight the Master and the Eminence , sending her to Ramossa , where she worked to improve the conditions of the humans refugees of the Eminence War who had settled there , alongside the native scorpion - like Ramossans , who began to depise their visitors and the danger they placed them in . When the humans were isolated into a " quarantine camp " , Liv worked to make conditions livable and acted as a medic to the injured , while waiting for the Doctor to arrive . Once he did , together , they worked out a way to make sure the humans escaped an incoming Eminence attack , however , their plan failed resulting in the complete destruction of the Ramossans , their world , and the Master securing the refugees for his own purposes . ( AUDIO : " The Reviled " ) Scared by the Doctor ' s determination to avert the war , but willing to go along with him , she snuck aboard the private research complex of Professor Markus Schriver , the man responsible for the eventual creation of the Eminence itself , and posed as an assistant sent to him by the Ides Scientific Institute . She became concerned by his mental health , but facilitated a meeting between him and the Doctor , which only reinforced the fact he was slowly loosing his sanity . Her cover was blown by the arrival of Dr . Sally Armstrong , working for the Master , and she would have died during a neural extraction procedure if Shriver ' s insanity hadn ' t caused him to trap Sally inside a second chamber and program the computer to decide which one would undergo the procedure through random chance . Due to her condition , Liv was ready for death , but in the end survived when the computer " chose " Sally instead . She was then taken by the Master instead to play nursemaid to Molly , who was suffering from the mental conditioning and retro - genitor particles that Master had assaulted her with . ( AUDIO : " Masterplan " ) Liv was present on Earth as the Master set up his final endgame , with the eventual result that all of humanity was slave to his will , only able to keep Molly stable and calm during her moments of wakefulness . When Narvin , working with the Doctor , tried to rescue her , she tried to shot the Master with a hidden firearm , but his hypnotic abilities caused her to believe she was finally succumbing to her illness . However , the Master revealed it was all in her mind , and that her continuous exposure to the particles inside Molly had in fact cured her of the radiation poisoning . She was eventually rescued from the Master ' s grasp by the Doctor , and sent by him to take control of a nearby television communications hub , which proved essential to ending the Master ' s control over the Earth , and defeating the Eminence in the here and now . Afterwards , she was invited on board the TARDIS as a full - fledged companion , even being given a TARDIS key of her own , and said her farewells to Molly , who was to be sent home by Narvin for her own protection . ( AUDIO : " Rule of the Eminence " ) Travelling with just the Eighth Doctor . She visited London 1921 when the Doctor was looking for Molly . She hated looking out of place in her usual attire , so wore clothes of the era . The Doctor then asked her to take Martin Donaldson out on the town . When Martin took her to see a Buster Keaton film she pointed out the flaws in it . The Woman was looking for her . ( AUDIO : " A Life in the Day " ) She went to Paris with the Doctor when he tracked the TARDIS to there . She talked to Georges Legrand which led her to Adelaine Dutemps . She kicked down the Doctor ' s artist friends apartment door . She told the Dalek Time Controller about the outcome of The Eminence war . ( AUDIO : " The Monster of Montmartre " ) Liv was disgusted that was working with the Dalek s . She got used to being taken prisoner by the Daleks . She expected the Master of being better than using the Daleks . She attacked the Master with the perfume the Doctor gave her in Paris , and stole his Tissue Compression Eliminator . She went to Moscow with him to find the Doctor . She blew Molly O ' Sullivan ' s cover there . ( AUDIO : " Master of the Daleks " ) She became worried after Molly became ill after they arrived in the Eye of Orion . The Time Controller then took her to see Markus Schriver ' s final experiments . She witness the birth of the Eminence . The Dalek Time Controller wanted her to transfer his mind into the gas the Eminence were composed of ; she wouldn ' t . She wanted the Dalek Time Controller to die to save billions . She took Molly home after her sacrifice . ( AUDIO : " Eye of Darkness " ) With the Doctor , she visited several England - themed planets . ( AUDIO : " Absent Friends " ) Helen Sinclair joins the crew . After years of travelling with the Doctor , ( AUDIO : " Absent Friends " ) she was brought to Gallifrey with the Doctor by Cardinal Padrac after the Eleven escaped . She helped Padrac search the Time Lord Academy for evidence against Kiani . After the Eleven created a state of emergency , he took her hostage . ( AUDIO : " The Eleven " ) When the Doctor traced a temporal anomaly to London 1963 , she helped Helen Sinclair to translate some documents from ancient languages using the TARDIS telepathic circuits . She discovered references to The Red Lady . ( AUDIO : " The Red Lady " ) In Florence , 1639 she helped the Cavalli in his investigations . ( AUDIO : " The Galileo Trap " ) She was again used by the Eleven as a hostage against the Doctor . She managed to stop Helen getting dissected . ( AUDIO : " The Satanic Mill " ) After this ordeal , the Doctor took her and Helen to Stegmoor to recuperate . She was the first to notice the Voord spaceship . She almost ran over Ishtek , which alerted the Voord to human presence . ( AUDIO : " Beachhead " ) She wanted to rescue Caleera from the machine that she was kept in . She went of to find the Eighth Doctor . She later helped a set of slaves escape from confinement . ( AUDIO : " Scenes From Her Life " ) When they landed in San Francisco 1906 , she asked Helen to take her round to find the Doctor as she knew the time period better . When Helen was kidnapped she went back to find her . She went ahead to unlock the TARDIS to help the Doctor ' s plan but was trapped underneath a building . ( AUDIO : " The Gift " ) She helped the Doctor to discover why the planet Syra was about to explode . In doing this she distracted the Eleven , and started a fight with him in mining robots . She was about to be thrown down the mine until River Song stopped him . ( AUDIO : " The Sonomancer " ) The Doctor , Helen and Liv went to Calcot on 1998 . She helped the Doctor investigate a mysterious set of nuisance calls . While there . Liv received a call from her father , who was long dead . When the Doctor told her the calls were temporally displaced she took advantage of this to tell her father how much he meant to her . ( AUDIO : " Absent Friends " ) Liv was placed in 15th century Prague in order to find a piece of the Doomsday Chronometer . Apolena took her to the forest and told her about the stories Osm told her . She then met River Song again , and helped her found a bit more about the Chronometer . ( AUDIO : " The Eighth Piece " ) She was to be killed by the Clocksmith but River managed to save her but then the Clocksmith ' s shop went up in flames and River took her away from the time zone to Rome in 2016 . Where she met up with Helen again , just before the Clock was reassembled ad the museum which they were in collapsed . Helen and Liv managed to get back to the TARDIS just in time to see Osm regenerate . ( AUDIO : " The Doomsday Chronometer " ) She found it difficult to deal with the Nine in his post regenerative state . The Nine left her behind on Gallifrey where she met with Padrac , who told her what he had stolen . She realised that Padrac was working with The Eleven after he saw a picture of Stormblood on his council and the fact that he was referring to Caleera when he was taken not the Eleven . Padrac then took her to the Crucible of Souls to show off his work . ( AUDIO : " The Crucible of Souls " ) She , the Doctor and Helen were trapped in a Scape capsule careering into the nontime of a murdered future by Padrac . She got moody at the Doctor at leaving her and Helen in Rome 2016 . After the Doctor couldn ' t fix the Time Ruders but found some sails which could capture the Time wind s . She was determined to find a way to get out of this situation . They jumped out of the pod and rode the shock wave back into normal time . ( AUDIO : " Ship in a Bottle " ) Liv and Helen appeared back in the normal universe with only five minutes of oxygen . They were rescued by a Time Ship which traversed the vortex and started to disintegrate . She managed to programme the ship to deposit them on Earth in the 25th century . River managed to get her to Gallifrey where she got to the TARDIS she left with Veklin to find the Doctor . ( AUDIO : " Songs of Love " ) Helen and Liv went exploring New York . When they went to the main museum they saw a picture of the TARDIS and a Weeping Angel which had been bequeathed by them . At the museum they started to hear about the Weeping Angels . projected an angel which then became an angel in front of them . Veklin came to save them and told her that she was the one giving them clues . ( AUDIO " : The Side of the Angels " ) She was tasked in the Doctor ' s plan to stop Padrac by destroying the Transduction Barriers . When she got into the city she got a message from Caleera to destroy the Capitol Shields instead . After Helen crashed the Battle TARDIS , Liv decided to help the injured Time Lords , before the Doctor told her that they were going to search for Helen . ( AUDIO : " Stop the Clock " ) Legacy . The Tenth Doctor told Gabby Gonzalez about Liv , along with several other former companions . ( COMIC : " Vortex Butterflies " )