The Doctor has retired to 1892 London. Despite the protests of his allies, he is determined to keep out of mankind's affairs. However, a governess named Clara has stumbled upon a plot which only the Doctor can unravel, involving the death of her predecessor in ice and the sinister Dr. Simeon, who controls monsters made of sentient snow. And there is another mystery afoot: Clara is the spitting image of Oswin Oswald, whom the Doctor saw die in the Dalek asylum...
Matt Smith
as The Doctor
Jenna Coleman
as Clara Oswin Oswald
Richard E. Grant
as Dr. Walter Simeon
Dan Starkey
as Strax
Catrin Stewart
as Jenny Flint
Neve McIntosh
as Madame Vastra
Tom Ward
as Captain Latimer
Liz White
as Alice
Joseph Darcey-Alden
as Digby Latimer
Ellie Darcey-Alden
as Francesca Latimer
Ian McKellen
as The Great Intelligence (voice)
Juliet Cadzow
as Ice Governess (voice)
