Hypnosis Hypnosis or mind control was the ability to place others into a state in which they would obey the commands of the hypnotist or believe what the hypnotist told them . Some forms of hypnosis were stronger than others . Memory erasure or alteration also could be accomplished hypnotically . The Doctor and hypnosis . The Doctor occasionally practised hypnosis . Time Lord DNA included a psychic empathy field , indicating that all Time Lords may have been capable of hypnosis . ( AUDIO : " The Oseidon Adventure " ) To break the mind control by the artificial intelligence WOTAN , the First Doctor used it on his companion Dodo Chaplet , leaving her asleep 48 hours long and forgetful of the accident . ( TV : " The War Machines " ) In Det - Sen Monastery ( Tibet ) , the Second Doctor repeatedly counteracted the mind control by the Intelligence over humans , such as monks and his companion Victoria ; in the second instance , he counter - hypnotised her in order to catch information about their enemy . ( TV : " The Abominable Snowmen " ) Even the Third Doctor proved to be able to break a state of hypnosis caused by others : on Jo Grant manipulated by the Master , through a verbal technique ( TV : " Terror of the Autons " ) or on the scientists kidnapped by the Sontaran Linx , with the help of an intermittent light . ( TV : " The Time Warrior " ) He could also resist forms of hypnosis which would defeat weaker - minded individuals , such as BOSS ' s conditioning at its strongest power frequency . ( TV : " The Green Death " ) The Fourth Doctor hypnotised Sarah - Jane Smith in order to reduce her oxygen requirements inside a decompression chamber ( TV : " Terror of the Zygons " ) or recover information about the entity that had possessed her through a Kastrian ring ( TV : " The Hand of Fear " ) simply by laying his hands on her temples . On Pluto , he once hypnotised one of the Company ' s guards in this way — and accidentally hypnotised a watching Leela , as well . ( TV : " The Sun Makers " ) On Ribos , instead , the Fourth Doctor used a fob watch to hypnotise a guard of a relic room . ( TV : " The Ribos Operation " ) The Sixth Doctor once hypnotised Jamie McCrimmon by first paralysing him , then using a silver pendulum to send him into a hypnotic sleep in order to ask him questions about what happened to the Second Doctor . ( TV : " The Two Doctors ) " On Necros , the Sixth Doctor tried to perform an eye - fixation form of hypnosis on a mutated victim of Davros ' experiments . It failed and he was forced to fight the creature off . ( TV : " Revelation of the Daleks " ) Later on , instead , the Seventh Doctor managed to control the minds of Peter Warmsly and Pat Rowlinson and convince them to evacuate Gore Crow Hotel by simple eye - fixation . ( TV : " Battlefield " ) The Tenth Doctor used hypnosis to calm Peter Streete down and put him in a trance state , so that Peter could give him information about the Carrionite s . This was also performed by pressing his fingers against Peter ' s temples . ( TV : " The Shakespeare Code " ) The Twelfth Doctor made Rupert Pink sleep and scrambled his memory about their rendezvous , by pressing his fingers against his temples . ( TV : " Listen " ) When Rupert , by then known as Danny , met the Twelfth Doctor as an adult and discovered his existence , his girlfriend Clara Oswald asked the Doctor not to meddle with his mind . ( TV : " The Caretaker " ) The Master and hypnosis . As a means to his ends , the Master frequently used hypnosis to have people perform tasks on his behalf . He most commonly did this through suggestion , uttering the phrase " I am the Master and you will obey me " . However , his success rate at hypnosis was sometimes poor , owing to potential victims ' stronger wills . ( TV : " Terror of the Autons " ) While working under the alias of Professor Thascalos at the Newton Institute , the Master hypnotised its director , Charles Percival ; he later commented that it had been a long time since he came across a hypnotic subject as good as Percival . It had absolutely no effect on King Dalios , however , who was too old , clever , and wise to subjugate with hypnosis . ( TV : " The Time Monster " ) The Master failed to hypnotise Jo Grant when she used repeated nursery rhyme s to resist . ( TV : " Frontier in Space " ) The Master tried to hypnotise Peri Brown , the Sixth Doctor ' s companion , using a distracting swinging implement as a focus ; it failed , however . ( TV : " The Mark of the Rani " ) He also tried and failed to hypnotise Sabalom Glitz . ( TV : " The Ultimate Foe " ) He later hypnotised the Earth on a large scale through use of the Archangel Network , subtly changing people ' s perception of him . ( TV : " The Sound of Drums " ) During the ten years when the Master was stuck on the Mondasian colony ship with Bill Potts , he would sometimes keep her quiet by putting his hand on her forehead which immediately caused her to fall asleep . ( TV : " World Enough and Time " ) Other instances of hypnosis . On Earth . Passengers of the aeroplane Golf Victor Foxtrot were hypnotised by the Xeraphin after travelling through a time corridor to the Jurassic era . ( TV : " Time - Flight " ) Sarah - Jane Smith was put under a hypnotic trance by Hieronymous . She was told that the Fourth Doctor was an evil sorcerer and that she should kill him with a poisoned needle . The Doctor realised that she was being influenced when she questioned her ability to understand strange languages , which she had never done before . ( TV : " The Masque of Mandragora " ) George Hutchinson was hypnotised by the Malus into helping create conflict in Little Hodcombe . The Malus fed on the psychic energy created through this . ( TV : " The Awakening " ) Magnus Greel granted Li H ' sen Chang the power of hypnosis , among others , in return for his services . ( TV : " The Talons of Weng - Chiang " ) Professor Brett was hypnotised by WOTAN , his own creation , into aiding the robot ' s bid to take over Earth . Other factory workers were also hypnotised into producing the War Machine s . ( TV : " The War Machines " ) The weed creature controlled both Mr Oak and Mr Quill through hypnosis . They also received the ability to exhale toxic gas . Both of them were freed by the death of the weed creature . ( TV : " Fury from the Deep " ) On Metebelis III and on Earth , the Eight Legs performed hypnosis on a host by attaching themselves to the back . From this position , they could govern the host . ( TV : " Planet of the Spiders " ) Jack Harkness used hypnotic induction to focus Toshiko Sato , Gwen Cooper , Ianto Jones , and Owen Harper on their true memories before using Retcon to rid them of the memory of Adam Smith . ( TV : " Adam " ) The Pied Piper hypnotised several children in order to abduct them , but was foiled by Mr Smith phoning them all on their mobiles , disrupting the Piper ' s abilities . ( TV : " The Day of the Clown " ) The Ancient Lights took control of people all over the world through Martin Trueman ' s invocation of their star signs before Luke Smith stopped them . ( TV : " Secrets of the Stars " ) Miss Myers hypnotised a worker in a nuclear power plant to serve her , and put the rest to sleep . ( TV : " Sky " ) The hologram of Joseph Serf was able to hypnotise people . John Harrison intended for him to use the ability to make everyone buy the SerfBoard s . Sarah Jane Smith , likely due to experience , was immune to this hypnosis . ( TV : " The Man Who Never Was " ) One of the most evident powers of the Great Intelligence was mind control . ( TV : " The Abominable Snowmen " ) In late 40th century , Sara Kingdom of Space Security Service used hypnosis to test the loyalty of Earth scientists , accused of plotting with the Daleks . She used a pendulum and discovered their thoughts were read by the Daleks . ( COMIC : " The Brain Tappers " ) On other planets . On Marinus , the Morpho hypnotised the humanoid s there into taking them as their rulers . ( TV : " The Keys of Marinus " ) The workers of a gas mining colony were hypnotised by the Macra into gathering them the resources they required . ( TV : " The Macra Terror " ) Alzarian spider s could hypnotise through a venomous bite . One did so to Romana who subsequently aided the Marshmen in their attack on the Alzarian starliner . ( TV : " Full Circle " ) The King Vampire was able to hypnotise the Three Who Rule into a thousand years of service and gave them the power of hypnosis . They used this on Romana , placing her in near - death trance . ( TV : " State of Decay " ) With technology . Borusa used the Crown of Rassilon to bend the Fifth Doctor ' s will in the Tomb of Rassilon . ( TV : " The Five Doctors " ) After the 22nd century Dalek invasion , several humans were fitted with special helmets and dubbed Robomen . They served the Daleks in controlling the population . However , the process was unstable , with a high failure rate : many died on the operating table , and a high percentage of the ones that survived rejected the conversion , going insane as a result and often committing suicide . ( TV : " The Dalek Invasion of Earth " ) Davros showed to have at his disposal a device able to put both humanoids and Daleks under his control by skin contact . It flashed with a green light . ( TV : " Resurrection of the Daleks " ) The Sontaran s made use of hypnosis . Jingo Linx had several humans work for him under hypnotic influence , ( TV : " The Time Warrior " ) as did the Sontarans of the Tenth Sontaran Battle Fleet when they controlled ATMOS . The Sontarans also hypnotised UNIT privates Harris and Steve Gray . ( TV : " The Sontaran Stratagem " , " The Poison Sky " ) The Fifth Doctor created a hypnosis machine that he used on Tegan . The machine also protected Tegan from the Mara . ( TV : " Snakedance " ) A Tythonian could use its communicator to hypnotise individuals . Torvin and Edu were hypnotised into returning Erato ' s communicator to him . ( TV : " The Creature from the Pit " ) The leader of the Sycorax attempted to take humans as slave s using blood control to hypnotise all those with A + blood . The Sycorax threatened to have them commit suicide if their demands were not met , but the Tenth Doctor pointed out that survival instincts would stop them from doing so . He released them by disabling the control . ( TV : " The Christmas Invasion " ) On Pete ' s World , Cybus Industries used EarPod s to control the population and have them report for Cyber - conversion . ( TV : " The Age of Steel " ) The Berserker pendant allowed its users to control others . ( TV : " The Mark of the Berserker " ) During the war between the planets Atrios and Zeos , the Shadow controlled its pawns through a device put in their neck . Among its victims , there were the Marshal of Atrios and the princess Astra . The Fourth Doctor proved to be immune to the device . ( TV : " The Armageddon Factor " )