W epizodzie tym powracają David Tennant i Billie Piper, czyli poprzedni Doktor i jego towarzyszka. Zagrają także John Hurt, Joanna Page i Jemma Redgrave. Odcinek jest kręcony kamerami 3D. Reżyseruje Nick Hurran.
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[image-browser playlist="592377" suggest=""]Fot. Rex Features Beretta/Sims