Last updated 24 March 2024


Part Four

Series Episode Number: 618

World Premiere: Fri 2 Mar 1984 - 6:41pm GMT [BBC One] (United Kingdom)
First Broadcast: Wed 20 May 2015 - 8:30pm EDT [Retro TV]
Running Time: 24 minutes 44 seconds

7.00 Million (UK)


Chart Position: 74 () (UK)




The Doctor is forced to take drastic measures against Kamelion and the Master to stop Sarn being completely destroyed by the numismaton gas that has been released...


Characters hide uncredited
The DoctorPeter Davison
TurloughMark Strickson
TimanovPeter Wyngarde
The MasterAnthony Ainley
PeriNicola Bryant
SorastaBarbara Shelley
AmyandJames Bate
Professor Howard FosterDallas AdamsInfo
MalkonEdward Highmore
RoskalJonathan Caplan
LomandJohn Alkin
CitizenIan Marshall-Fisher (uncredited)
CitizenAndy Andreas (uncredited)
CitizenBarbara Burnell (uncredited)
CitizenRobert Smythe (uncredited)
CitizenBrychen Powell (uncredited)
CitizenDavid Payne (uncredited)
CitizenJenny Piper (uncredited)
CitizenJill Goldston (uncredited)
CitizenMary Rennie (uncredited)
CitizenPat Pelton (uncredited)
CitizenPaul Barton (uncredited)
CitizenPenny Lambirth (uncredited)
CitizenRosalind Kendal (uncredited)
CitizenStuart Myers (uncredited)
CitizenValero Martinez (uncredited)
ElderColin Thomas (uncredited)
ElderDonald Groves (uncredited)
ElderHarry Lewis (uncredited)
ElderTerry Rendal (uncredited)
GuardDavid Rogue (uncredited)
GuardDerek Hunt (uncredited)
GuardRobin Bond (uncredited)
GuardSteven Arnely (uncredited)
Distorted VoiceJohn Alkin (uncredited)
TrionRay Knight (uncredited)
KamelionAnthony Ainley (uncredited)Info
Production Team include uncredited
WriterPeter Grimwade
DirectorFiona Cumming
ProducerJohn Nathan-Turner
DesignerMalcolm Thornton
Script EditorEric Saward
Title SequenceSid Sutton
Costume DesignerJohn Peacock
Make-up DesignerElizabeth Rowell
Lighting DirectorJohn Summers
SoundScott Talbott
Technical CoordinatorAlan Arbuthnott
Camera SupervisorAlec Wheal
Camera SupervisorGeoff Clark
Videotape EditorHugh Parson
Visual Effects DesignerChris Lawson
Video EffectsDave Chapman
Vision MixerDiana Long
Film CameramanJohn Walker
Film SoundJohn Tellick
Film EditorAlastair Mitchell
Production ManagerCorinne Hollingworth
Production AssociateJune Collins
Production AssistantClaire Hughes Smith
Assistant Floor ManagerRobert Evans
Title MusicRon Grainer
Incidental MusicPeter Howell
Special SoundDick Mills
Special Sound BBC Radiophonic Workshop