Ohila Ohila was the High Priestess of the Sisterhood of Karn , and was active during the Last Great Time War , as well as the aftermath of the war ' s end . She was pleased to see the Eighth Doctor return to Karn , but pitied the fact he had been killed in a crash landing , following his inability to save Cass because she refused his help , owing to her hatred of the Time Lord s . The Sisterhood revived him for four minutes , and Ohila begged the Doctor to help them by taking the Elixir of Life . After arguing with him , she convinced the Doctor that he was the only one capable of stopping the war , and he could not help anyone by running away from it just to uphold his principles as the Doctor . Once the Sisterhood retrieved Cass ' s body from the wreckage , the Doctor gave up hope and decided to enter the Time War . He used her potion containing the Elixir of Life to regenerate into a warrior for battle , no longer going by the name of " Doctor " . ( TV : " The Night of the Doctor " ) Ohila met the Doctor again in his twelfth incarnation . He was present on Karn when Colony Sarff arrived and spoke to Ohila about searching for him on behalf of Davros . Sarff gave a message to Ohila to pass on to the Doctor ( unaware he was listening ) , stating that " Davros remembers " , and an invitation to meet him one last time . ( TV : " The Magician ' s Apprentice " ) She didn ' t believe his answers when discussing the invitation , stating that it was easier to assume he was lying to her rather than trust his word . She also indicated that she considered herself and the Doctor to be friends , an assertion he didn ' t refute . Before leaving Karn , the Doctor gave her his confession dial , saying that she ' d know who to give it to . ( WC : " Prologue " ) She later gave it to . ( TV : " The Magician ' s Apprentice " ) When Ohila heard the Twelfth Doctor had returned to Gallifrey , she went there and met with the General and the High Council , much to the Lord President ' s irritation . Ohila watched Rassilon ' s efforts to reach out to the Doctor with amusement and told Rassilon that the Doctor didn ' t blame Gallifrey for the horrors of the Time War , but rather Rassilon himself . After Rassilon was overthrown , Ohila spoke with the Doctor about his actions and about the Hybrid . She later consulted with the General about the Doctor ' s actions and , deep in the Cloisters , told Clara what happened in the Doctor ' s confession dial and why . As the Doctor and Clara escaped in a stolen TARDIS , Ohila yelled that he was going against everything he ever believed in before leaving , disgusted . The Doctor ultimately acknowledged that she was right . ( TV : " Hell Bent " ) Ohila was present when the Twelfth Doctor crash landed on Karn . He asked Ohila to take him to the Sisterhood ' s back door to Gallifrey . She was reluctant at first , but after the Cybermen began to attack the Sisterhood , she showed him to the door and sealed it behind him when he passed through . ( COMIC : " Supremacy of the Cybermen " ) Behind the scenes . According to an interview with " Doctor Who " head writer , executive producer and writer of " The Night of the Doctor " Steven Moffat , Ohila ' s name is a reference to Ohica .