Last updated 24 March 2024

Cast
Tom BakerDoctor Who
Elisabeth SladenSarah Jane Smith
Rex RobinsonDr. Carter
Renu SetnaIntern
David PurcellAbbott
Roy PattisonZazzka
Roy SkeltonKing Rokon
Robin HargraveGuard
Libby RitchieNurse
Derek SouthernPathology Technician
John DeleiuPathology Technician
Michael WadsworthAmbulance Man
Carl EdwardsAmbulance Man
Colin JaggardExplosives Man
John TelferNunton Guard
Brian GearNunton Guard
David HydeNunton Guard
Bob PetersDriver
Alan EvansFried Nunton Worker
Simon JonesQuarry Worker
Bruce HubbleQuarry Worker
Ken TaylorQuarry Worker
Peter BushMan in Radiation Suit
Glyn HoustonProfessor Watson
Roy BoydDriscoll
Frances PidgeonMiss Jackson
John CannonElgin
Max FaulknerStunts
Sonia StrattonComplex Personnel
Margaret PilleauComplex Personnel
Roger SalterComplex Personnel
Douglas AuchterlonieComplex Personnel
Lionel SansbyComplex Personnel
David CleeveMan in Radiation Suit
Keith SimmonsMan in Radiation Suit
Barry SummerfordSecurity Guard
Michael De WildeSecurity Guard
Robert TuckerSecurity Guard
Ronald LeeSecurity Guard
Paul NicholsonSecurity Guard
Kenneth ThomasTechnician
Bruce GuestTechnician
Mark HolmesTechnician
Julia BurnettTechnician
Rosemary JolliffeTechnician
Judith ParisEldrad
Ray WadsworthSecurity Guard
Tim HooperSecurity Guard
Stephen ThorneKastrian Eldrad
Production Team
Bob BakerWriter
Dave MartinWriter
Lennie MayneDirector
Philip HinchcliffeProducer
Christine RuscoeDesigner
Robert HolmesScript Editor
Barbara LaneCostume Designer
Judy NeameMake-up Artist
Colin MapsonVisual Effects Designer
Max SamettFilm Cameraman
Graham BedwellFilm Recordist
Christopher RowlandsFilm Editor
Derek SleeStudio Lighting
Brian HilesStudio Sound
Dick MillsSpecial Sound
Bernard LodgeTitle Sequence
Chris D'Oyly-JohnProduction Unit Manager
Marion McDougallProduction Assistant
Dudley SimpsonIncidental Music
Ron GrainerTitle Music
BBC Radiophonic Workshopand the
Fred WrightTechnical Manager
Johnny NorrisShow Working Supervisor
Nick LakeVision Mixer
Dave ChapmanInlay Operator
Ken AyresStudio Engineer
Ronnie PeverallSenior Cameraman
Terri WindersAssistant Floor Manager
Martin RidoutGrams Operator
Judith LangDesign Assistant
Joy SinclairDirector's Assistant
Laurie BushFilm Camera Assistant
John PritchardFilm Sound Assistant
Dennis JohnsonLighting Chargehand
Ian BrindleFilm Operations Manager
Jim HeringFilm Operative
Jim ShortFilm Operative
John PhillipsFilm Operative
Alan ThompsonFilm Operative
Alan MuhleyFilm Lighting
George BestFilm Lighting
Dave ChildFilm Lighting
Dave GurneyFilm Lighting
Stan SweatmanGrip
John DymockFilm Unit
James GuestFilm Unit
James HughesFilm Unit
Mary WestonFilm Unit
Jennie BettsFilm Locations
Mervin BezarDresser
Gail ClarksonDresser
Nansi DaviesArtist Booking
Phyllis PageArtist Booking
Janet GilpinMake-Up Assistant
Jennifer HughesMake-Up Assistant
Caroline O'NeilMake-Up Assistant
Roger WilliamsProps Buyer
Delia DerbyshireTitle Music Arranger
Max FaulknerFight Arranger
Andy StaceyGrams Operator