Guest Stars Dan Starkey as Commander Strax Neve McIntosh as Madame Vastra Catrin Stewart as Jenny Flint Richard E. Grant as Dr. Simeon Liz White as Alice Ian McKellen as Great Intelligence Tom Ward as Captain Latimer Ellie Darcey-Alden as Francesca Ben Addis as Bob Chilcott Daniel Hyde as Lead Workman Juliet Cadzow as Ice Governess Joseph Darcey-Alden as Digby Cameron Strefford as Walter Annabelle Dowler as Walter's Mother Sophie Miller-Sheen as Clara's Friend Jim Conway as Uncle Josh
