Matt Smith
The Doctor
Acting
Jenna Coleman
Clara Oswin Oswald
Acting
Richard E. Grant
Dr. Walter Simeon
Acting
Dan Starkey
Strax
Acting
Catrin Stewart
Jenny Flint
Acting
Neve McIntosh
Madame Vastra
Acting
Tom Ward
Captain Latimer
Acting
Liz White
Alice
Acting
Joseph Darcey-Alden
Digby Latimer
Acting
Ellie Darcey-Alden
Francesca Latimer
Acting
Ian McKellen
The Great Intelligence (voice)
Acting
Juliet Cadzow
Ice Governess (voice)
Acting
Jim Conway
Uncle Josh
Acting
Cameron Strefford
Young Walter
Acting
Annabelle Dowler
Walter's Mother
Acting
Ben Addis
Bob Chilcott
Acting
Daniel Hyde
Lead Worker
Acting
Sophie Miller-Sheen
Girl
Acting