Cast

• Sylvester McCoy (The Doctor)
• Alex Macqueen (The Other Doctor)
• Beth Chalmers (Raine Creevy / Sylvie's Mum)
• Tracey Childs (Doctor Elizabeth Klein)
• Bradley Gardner (Sergeant Wilson / Tolians)
• Julian Dutton (Colonel Lafayette)
• Miranda Keeling (Sylvie Wilson / Liz Morrison / Nexus / Time Lord)
• Alex Mallinson (Private Maynard / Arunzell / Skyheads / Colonel Tennison / General Nakatomi)
• Ben Porter (Private Phillips / John Starr / Tolians / Hauptmann Beyer / Medic / Nexus)
• Samuel Clemens (Major Wyland-Jones / Trooper / Castellan)
• Martin Johnson (UNIT Operator)
• Nicholas Briggs (Time Lord)