Last updated 18 August 2023

Cast
Tom BakerDoctor Who
Mary TammRomana
John WoodvineMarshal
Lalla WardPrincess Astra
Davyd HarriesShapp
Ian SaynorMerak
John LeesonVoice of K-9
Ian Liston'Hero'
Susan Skipper'Heroine'
John CannonGuard
Val McKinnonNurse (Armageddon Factor)
Judy RogerNurse (Armageddon Factor)
Peter BithielTechnician (Armageddon Factor)
Constance CarlingTechnician (Armageddon Factor)
Gary DeanTechnician (Armageddon Factor)
Bill HughesTechnician (Armageddon Factor)
David WildeTechnician (Armageddon Factor)
Malcolm RossTechnician (Armageddon Factor)
Peter EatonGuard (Armagaddon Factor)
Tony O'LearyGuard (Armagaddon Factor)
Reg TurnerGuard (Armagaddon Factor)
Richard SheekeyGuard (Armagaddon Factor)
Peter RoyGuard (Armagaddon Factor)
Barry SummerfordGuard (Armagaddon Factor)
Ridgewell HawkesMute (ArmagaddonFactor)
Albert WelchPaitent (Armagaddon Factor)
Harry FielderGuard
William SquireThe Shadow
Iain ArmstrongTechnician
Pat GormanPilot
Michael BrabenMute (ArmagaddonFactor)
Danny RaeMute (ArmagaddonFactor)
James HaswellMute (ArmagaddonFactor)
Eddie WhitingMute (ArmagaddonFactor)
Barry JacksonDrax
Stephen CalcuttSuper Mote
Derek SuthernMute (ArmagaddonFactor)
Valentine DyallThe Guardian
Michael Gordon-BrowneMute (ArmagaddonFactor)