text:  Also returning to the series are Neve <unk> as Madame <unk> , Dan <unk> as <unk> and <unk> Stewart as Jenny . All three previously appeared in " A Good Man Goes to War " and reprised their roles both in this episode and in the <unk> . They returned due to the popularity of <unk> and Jenny ; Moffat considered a spin @-@ off featuring them , though he did not have the time to do it . Instead , he decided to bring them back in the main series . Richard E. Grant had previously played the Doctor on two occasions , as an alternative Tenth Doctor in the spoof charity special Doctor Who and the Curse of <unk> Death , which was written by Moffat and as an alternative <unk> Doctor in the animated story Scream of the <unk> which had been intended to be a continuation of the series before it was revived in 2005 . Smith commented that Grant was " born to be a Who villain . He pitches it on that perfect level and tone " . Grant 's appearance in Doctor Who was <unk> by the BBC via Twitter , announcing his appearance at midnight 5 August 2012 . Tom Ward was drawn to his role because of the quality of the script , and also stated his young children were pleased that he appeared in the programme . The Great Intelligence was voiced by Sir Ian <unk> . The two children <unk> is governess to , <unk> and <unk> , were played by real @-@ life brother and sister Joseph and Ellie <unk> @-@ Alden . 
  