크레딧 출연 맷 스미스 The Doctor 제나 콜먼 Clara Oswin Oswald 리처드 E. 그랜트 Dr. Walter Simeon Dan Starkey Strax Catrin Stewart Jenny Flint Neve McIntosh Madame Vastra Tom Ward Captain Latimer Liz White Alice Joseph Darcey-Alden Digby Latimer Ellie Darcey-Alden Francesca Latimer 이안 맥켈런 The Great Intelligence (voice) Juliet Cadzow Ice Governess (voice) Jim Conway Uncle Josh Cameron Strefford Young Walter Annabelle Dowler Walter's Mother Ben Addis Bob Chilcott Daniel Hyde Lead Worker Sophie Miller-Sheen Girl 스텝 스티븐 모팻 Writing Marcus Wilson Production 스티븐 모팻 Production Caroline Skinner Production Saul Metzstein Directing Saul Metzstein Directing Andy Pryor Production Howard Burden Costume & Make-Up William Oswald Editing Michael Pickwoad Art Stephan Pehrsson Camera Murray Gold Sound Barbara Southcott Costume & Make-Up