The Doctor arrives in Victorian London. It's Christmas, but snow isn't the only thing descending on the tranquil and jubilant civilization, as familiar silver giants from an alternate reality are amassing in numbers. The Cybermen are on the move again, and the only beings who can stop them are the Doctor and... another Doctor?
David Tennant
The Doctor
David Morrissey
Jackson Lake
Dervla Kirwan
Miss Hartigan
Velile Tshabalala
Rosita
Ruari Mears
Cybershade
Paul Kasey
Cyberleader
Neil McDermott
Jed
Nicholas Briggs
Cybermen (voice)
