Ood The Ood , also known as Oodkind , were a gestalt species of telepathic humanoid s native to the Ood Sphere . Human ity enslaved the Ood , mutilating them to ensure a dedication to servitude . Biology . The Ood were a humanoid species with coleoid tentacle s used for feeding purposes located on the lower portions of their faces . They had no vocal cords and instead communicated by telepathy . The Ood had long lifespan s ; Ood Sigma lived 100 years after the human enslavement ended and the Tenth Doctor was surprised at this , thinking he should have been much older . ( TV : " The End of Time " ) The Ood had two brain s : a forebrain in the head and a secondary hindbrain . The hindbrain was usually held in their hands , and was connected by an umbilical cord - like connection to their faces . The forebrain did much of the thinking and stored the telepathic sensors . The hindbrain processed memory and emotions , leading to mental instabilities when removed . The Ood could survive with it being removed and replaced with the more commonly seen translation sphere that connected to an Ood ' s nervous system . ( TV : " Planet of the Ood " ) The Ood Elder had a larger , external forebrain ( TV : " The End of Time " ) . A giant Ood Brain located on their home planet acted as their telepathic centre ; if the brain was destroyed , it would kill the entire species , and if suppressed the mental capacity of the species would be severely weakened . ( TV : " Planet of the Ood " ) Under normal circumstances the Ood were gentle and harmless creatures . However , due to their brain structure they were susceptible to corruption , as demonstrated by how easily the race was enslaved by Ood Operations . ( TV : " Planet of the Ood " ) More worryingly , their passive telepathy allowed them to be easily controlled and / or possessed by more powerful telepathic entities , such as the Beast ( TV : " The Impossible Planet " ) and House . ( TV : " The Doctor ' s Wife " ) Telepathy and mental abilities . The Ood were originally a hive mind led by the Ood Brain , using their hindbrain to " sing " with each other . The colour of an Ood ' s eye s changed with the level of telepathic activity , normally glowing bright - red but turning to white when not connected to a hive mind . Humans , who only knew the Ood in their telepathy - disabled form , misinterpreted the presence of red eyes as a disease , known as " red - eye " . ( TV : " Planet of the Ood " ) Under the control of House , one Ood ' s eyes glowed green . ( TV : " The Doctor ' s Wife " ) History . In the 2010s , an Ood was a resident of the hidden trap street in London which housed lost aliens on Earth under the protection of Mayor Me . As with the rest of the inhabitants it appeared cloaked in human form through use of the lurkworm s . It was observed by the Twelfth Doctor and Clara Oswald as it performed maintenance on a Cyberman . ( TV : " Face the Raven " ) The Ood were a peaceful herd - race originally . In the 39th century , humanity discovered the Ood , enslaved them , and used them to perform menial tasks throughout the three galaxies of the Second Great and Bountiful Human Empire . The external hindbrain of the Ood was extracted by Ood Operations and replaced with their translator globes . With their connection to the Ood Brain severed , they followed the orders of humans . Ood Operations kept this procedure a secret from the rest of humanity , spreading the belief that the Ood were naturally servile and offered themselves for servitude . ( TV : " Planet of the Ood " ) On 23 November 2015 , the Twelfth Doctor dressed as an Ood in a Clara Oswald costume for Clara ' s birthday party . ( COMIC : " The Partying of the Ways " ) By the 42nd century , it was claimed that every human had an Ood servant . They were generally barely even regarded as being alive , and were considered to be expendable . Despite this , an activist group , the Friends of the Ood lobbied for the cause of their freedom . ( TV : " The Impossible Planet " ) In 43K2 . 1 , the Ood were being used for menial labour on Sanctuary Base 6 on Krop Tor . The Ood knew of prophecies regarding the Beast , which the Walker Expedition would later discover . ( WC : " Tardisode 8 " , " Tardisode 9 " , TV : " The Impossible Planet " ) The Beast possessed the Ood , and made them into his " Legion " in order to besiege the human party of the expedition . ( TV : " The Impossible Planet " ) They were defeated when Danny Bartock , the expedition member in charge of them , broadcast a telepathic flare which reduced their field to Basic Zero . This created a " brainstorm " which caused them to collapse . However , their telepathic field began to reassert itself after a time . When the Tenth Doctor broke the gravity field that kept Krop Tor in orbit around the black hole K37 Gem 5 , the Doctor was only able to make a single trip in the TARDIS to rescue Ida Scott from suffocation ; he was unable to save any of the Ood on the base , who had just been freed of the Beast ' s control . All perished but were given posthumous honours . ( TV : " The Satan Pit " ) In 4126 , the Tenth Doctor and Donna Noble visited the Ood Sphere by happenstance . They found Ood Operations , and decided to learn the origins of the Ood and what or who had turned them into a race of slaves . At the same time , the " red - eye " disease was becoming more and more common . They discovered that the disease was caused by the Ood Brain ' s subconscious reasserting itself over the Ood thanks to the efforts of a member of " Friends of the Ood " who had infiltrated the company secretly . Ood Operations ' head , Klineman Halpen was unwillingly transformed into an Ood as a culmination of him taking hair tonic deliberately contaminated by his own Ood servant . The Doctor deactivated the field that was suppressing the Ood Brain ' s telepathy and it sent out a song that was heard by everyone across the three galaxies . Humanity , now knowing the truth about their Ood slaves , returned them to the Ood Sphere , where they were set free and allowed to live in peace . ( TV : " Planet of the Ood " ) Circa 4226 , the Ood ' s development had been unnaturally enhanced , allowing them to build an entire civilisation and extended their mental powers . At the same time , the Ood had nightmares of and of time bleeding . ( TV : " The End of Time " ) In response , they sent Ood Sigma to 2059 to contact the Tenth Doctor . ( TV : " The Waters of Mars " ) He eventually arrived on the Ood Sphere and telepathically connected to the Ood Council . When he saw the Master , he immediately returned to the 21st century to investigate . The Ood watched him and when he finally began to die , they telepathically sang to him . ( TV : " The End of Time " ) The Ood was one of the 11 creatures who appeared in the hologram projection shown by the Atraxi as they were scanning Earth ' s history to check if it was protected . ( TV : " The Eleventh Hour " ) Undated events . At some point an Ood ( later named Nephew ) had been transported by a time rift to a bubble universe , where he was severely injured from the journey . He was repaired and taken control of by House to use as a medium to drain another ' s soul and mind for his plans to remove TARDIS Matrixes . Unlike Auntie and Uncle , Nephew was brought along by House when it took over the Doctor ' s TARDIS , using him to try and kill Amy and Rory . Nephew was destroyed when the Eleventh Doctor and Idris landed the Junk TARDIS on him , ripping him apart at the atomic level . The Doctor lamented briefly that Nephew was yet another Ood that he had failed to save . ( TV : " The Doctor ' s Wife " ) At least one Ood was abducted and sent to face its fear in the Minotaur ' s prison ship . ( TV : " The God Complex " ) At one point , Albert Einstein was brought to the TARDIS and was accidentally turned into an Ood by his experimental liquid . However , the Eleventh Doctor was able to reverse this , but the chemical itself gained sentience . ( TV : " Death is the Only Answer " ) The Eleventh Doctor rescued an Ood from the Androvax conflict , with the intent of returning him to the Ood Sphere , but the Ood at one point escaped from the TARDIS and took refuge in the home of Amy and Rory . For the next month or so , the Ood insisted on acting as the couple ' s butler until the Doctor was able to retrieve him . ( WC : " Pond Life " ) Several Ood worked in the claims department of Psychic Paper Inc . ( COMIC : " Psychic Paper Inc Claims Department " ) The Eleventh Doctor once had multiple Ood on his TARDIS . When the Ood received upgrades to their communicators , which the Doctor described as " all the rage , " they stopped serving the Doctor , Amy , and Rory and began playing " bird - throwing games " and trolling the Doctor on Twitter about his eleventh incarnation not being as good as his tenth . ( COMIC : " An Ood Thing to Say " ) An Ood was at Florana when Amy , Rory , and the Eleventh Doctor went there for a summer holiday . ( COMIC : " Summer Wholiday " ) An Ood was present in the Maldovarium when Colony Sarff visited the establishment while searching for the Twelfth Doctor on behalf of Davros . ( TV : " The Magician ' s Apprentice " ) References . The War Doctor suggested the Ood , among other telepathic races , as possible creators of the psychic Anima device . ( AUDIO : " A Thing of Guile " ) The Ood were on the Eleventh Doctor ' s top five enemies list which he mentioned to the Fourth Doctor and Romana II while they were making up " top five " lists . ( AUDIO : " Babblesphere " )