Tasha Lem Tasha Lem was the Mother Superious of the Papal Mainframe and a friend of the Doctor . She was on familiar enough terms with the Doctor to compliment him on his current form , and for the Doctor to later kiss her . She apparently did not age , as she was " against " it . She also possessed the ability to pilot the TARDIS , telling Clara Oswald that " flying the TARDIS was always easy . . . it was flying the Doctor I never quite mastered . " Shortly before the Siege of Trenzalore , she summoned the Eleventh Doctor and Clara Oswald aboard the Papal Mainframe . After explaining about the signal from the planet surface , she teleported the Doctor and Clara to the planet ' s surface , ordering them to return to her in " one hour " . When the Doctor later discovered that Gallifrey and the Time Lord s were attempting to return through the scar tissue left by the Cracks in Time , Tasha contacted the Doctor via a massive holographic projection of her face and warned him not to summon the Time Lords back , or else the Time War would begin anew . The Doctor refused to abandon Trenzalore ' s people . In response , Tasha informed the Church that their new faith would be " Silence " . She declared that the Doctor must never speak his name and that " silence will fall . " Three hundred years later , the Daleks – having failed to breach Trenzalore ' s defences on their own – attacked the Papal Mainframe and slaughtered everyone inside , including Tasha . The knowledge of the Doctor was extracted from her corpse and used to restore the Daleks ' lost memories of him . The Daleks also apparently revived , tortured , and killed her several times in a failed attempt to learn how to fully breach Trenzalore ' s defences . Eventually , she was converted into a Dalek puppet . The Daleks used her to draw the Doctor and Clara into a trap onboard the Papal Mainframe , under the guise of wanting to speak with him . During the feigned conference , she explained to the Doctor how the Kovarian Chapter of the Church of Silence were responsible for the attempts on his life , even mentioning River Song . Upon revealing that she was actually killed in the Dalek attack three days prior , her Dalek conditioning activated and she transformed into a Dalek Puppet , just as three Daleks entered the room . The Doctor threatened to speak his name , bringing back the Time Lords – and with them the Time War itself . In response , Tasha took Clara hostage , and the Daleks threatened to have Clara killed if the Doctor didn ' t " die in silence " . The Doctor told Tasha to kill Clara , claiming he didn ' t care . Clara did not see this as a betrayal , however , as she understood the Daleks planned on killing her anyway , and instead remained by the Doctor ' s side . The Doctor praised Clara ' s bravery and berated Tasha for her cowardice . These insults restored Tasha ' s personality and ( after slapping the Doctor ) she proceeded to destroy the three Daleks with her Dalek - implanted weaponry . She then told the Doctor and Clara to flee , warning them that she couldn ' t resist the Dalek programming forever . The Doctor – refusing to abandon the people of Christmas – urged her to continue fighting the Dalek conditioning . She took his advice , and after the Doctor and Clara escaped back to Christmas , Tasha proceeded to rally the remaining Church and Silent forces on Trenzalore to fight alongside the Doctor . When the Doctor was dying of old age , Tasha piloted the TARDIS to retrieve Clara so that she could be with him . She ran into battle on Trenzalore to assist her soldiers . ( TV : " The Time of the Doctor " )