Guest Stars Pat Gorman as Cyberman Christopher Robbie as Cyberleader William Marlowe as Lester Jeremy Wilkin as Kellman Kevin Stoney as Tyrum Brian Grellis as Sheprah David Collings as Vorus David Collings as Wilkins Michael E Briant voices monitor voice Alec Wallis as Warner Michael Wisher as Magrik Michael Wisher as Colville Melville Jones as Cyberman Ronald Leigh-Hunt as Commander Stevenson Tony Lord as Cyberman