Last updated 24 March 2024

Cast
Patrick TroughtonDr. Who
Frazer HinesJamie
Wendy PadburyZoe
Sally FaulknerIsobel
Kevin StoneyTobias Vaughn
Peter HallidayPacker
Murray EvansLorry Driver
John LeveneBenton
Geoffrey CheshireTracy
Walter RandallPatrolman
Sheila DunnPhone Operator
Dave CarterPatrolman
Terry DugganPatrolman
Ray FordPatrolman
Peter PocookPatrolman
Leslie BatesIE Guard
Bryan NolanIE Guard
Ron RingerDriver
Harry MartinDriver
Ian FairbairnGregory
Nicholas CourtneyBrigadier Lethbridge-Stewart
James ThornhillSergeant Walters
Robert SidawayCaptain Turner
Maurice BrooksIE Guard
Kenneth HaleIE Guard
Leslie ConradUNIT Soldier
Charles FinchUNIT Soldier
James HolbrookUNIT Soldier
Ross HuntleyUNIT Soldier
Richard KitteridgeUNIT Soldier
Steve KellyUNIT Soldier
Roy PearceUNIT Soldier
John LordWarehouseman
Gordon StothardWarehouseman
Edward BurnhamProfessor Watkins
Ron ConradIE Guard
Alistair McFarlaneIE Guard
Edward DentithMajor General Rutlidge
Pat GormanCyberman
Derrick SlaterIE Guard
Peter ThompsonWorkman
Dominic AllanPoliceman
Miles NorthoverWarehouseman
Derek ChaferCyberman
Ralph CarriganCyberman
Charles FinchCyberman
Ron ConradUNIT Soldier
Stacy DaviesPrivate Perkins
John SpadburyCyberman
Terence DenvilleCyberman
Trevor ShewringArchitect
Simon StapelyCity Gent
Roy DentonWindow Cleaner
Lyn TurnerCharlady
Jerry KingMan in Car
Terry NelsonMan in Car
Clifford EarlMajor Branwell
Norman HartleySergeant Peters
Richard KingCyberman
Peter ThorntonCyberman
Gary DeanUNIT/Bunker Crew
Barry DupresUNIT/Bunker Crew
John KieltyUNIT/Bunker Crew
Mike LeeUNIT/Bunker Crew
Crawford LyleUNIT/Bunker Crew
Alistair McFarlaneUNIT/Bunker Crew
Tony ManningUNIT/Bunker Crew
Victor MuntUNIT/Bunker Crew
David PeltonUNIT/Bunker Crew
Clark ReedUNIT/Bunker Crew
Peter RoyUNIT/Bunker Crew
Derrick SlaterUNIT/Bunker Crew
Terry WalshStunts
Maurice BrooksStunts
Alan ChuntzStunts
Billy HorriganStunts
Bobby BeaumontUNIT Soldier
Reg CranfieldUNIT Soldier
Robert PearceUNIT Soldier
Production Team
Derrick SherwinWriter
Kit PedlerFrom a story by
Douglas CamfieldDirector
Peter BryantProducer
Richard HuntDesigner
Terrance DicksScript Editor
Don HarperIncidental Music
Ron GrainerTitle Music
BBC Radiophonic Workshopand the
Alan JonasFilm Cameraman
Bill ChesneauFilm Sound Recordist
Martyn DayFilm Editor
Bobi BartlettCostumes
Sylvia JamesMake-up
Robbie RobinsonLighting
Alan EdmondsSound
Bill KingVisual Effects
Trading PostVisual Effects
Brian HodgsonSpecial Sound
Chris D'Oyly-JohnProduction Assistant
David LangfordVision Mixer
Ron ArnettGrams Operator
Don BabbageTechnical Manager
Sue SlyDirector's Assistant
Sue WillisAssistant Floor Manager
Michael WardFloor Assistant
Hugh WilsonFilm Operations Manager
Delia DerbyshireTitle Music Arranger
Bernard LodgeTitle Sequence
Bryan ForghamSound
Dave SilkGrams Operator
Ministry of DefenseWith thanks to
Alan EdmondsSound
John BarclayVision Mixer
Peter ValentineTechnical Manager