Guest Stars Nicholas Briggs voices Cybermen Paul Kasey as Cyber-Leader Dervla Kirwan as Mercy Hartigan Velile Tshabalala as Rosita Ashley Horne as Lad Edmund Kente as Mr. Scoones Neil McDermott as Jed Michael Bertenshaw as Mr. Cole Ruari Mears as Cybershade Jason Morell as Vicar Tom Langford as Frederic Jordan Southwell as Urchin Matthew Allick as Docker