Last updated 24 March 2024


Part One

Series Episode Number: 422

World Premiere: Sat 31 Jan 1976 - 6:00pm GMT [BBC One] (United Kingdom)
First Broadcast: Wed 23 Apr 1980 - 5:30pm CST [WTTW 11 Chicago]
Running Time: 24 minutes 10 seconds

11.40 Million (UK)

Appreciation Index: 59 (UK)

Chart Position: 16 () (UK)

Recorded on Mon 17 Nov 1975 in TC4



Learning of an alien seed pod at the Antarctic, the Doctor and Sarah investigate. But they are too late. A man is already turning into a Krynoid.


Production Team hide uncredited
WriterRobert Banks Stewart
DirectorDouglas Camfield
ProducerPhilip Hinchcliffe
DesignerRoger Murray-Leach
DesignerJeremy Bear
Film CameramanKeith Hopper (uncredited)
Film EditorM A C Adams (uncredited)
Script EditorRobert Holmes
OB LightingClive Potter
OB SoundVic Godrich
Studio LightingJohn Dixon
Studio SoundJohn Holmes
Visual Effects DesignerRichard Conway
Costume DesignerBarbara Lane
Make-upAnn Briggs
Incidental MusicGeoffrey Burgon
Special SoundDick Mills
Title MusicRon Grainer
and BBC Radiophonic Workshop
Title SequenceBernard Lodge
Production AssistantGraeme Harper
Production Unit ManagerJanet Radenkovic
Assistant Floor ManagerSue Shearman (uncredited)
Vision MixerSue Thorne (uncredited)
Technical ManagerBernard Fox (uncredited)
Electronic EffectsDave Jervis (uncredited)
Grams OperatorAndrew Hunter (uncredited)
Technical Manager(TM2)Bert Robinson (uncredited)
Senior CameramanPaul Kay (uncredited)
OB Vision MixerPaul Jackson (uncredited)
OB CameramanSimon Fone (uncredited)
OB CameramanFrank Hudson (uncredited)
Floor AssistantSteve Haggard (uncredited)
Make-Up AssistantCatherine Cary-Elwes (uncredited)
Make-Up AssistantJanet Gilpin (uncredited)
Make-Up AssistantGillian Thomas (uncredited)
Design AssistantJan Spoczynski (uncredited)
Director's AssistantBriony Brown (uncredited)
Artist BookingNansi Davies (uncredited)
DresserArthur Funge (uncredited)
DresserMoira Fitzgerald (uncredited)
Pre-Production SecretaryGillian Bowles (uncredited)
Facilities BookerCarol Vigurs (uncredited)
Orchestrated byAlan Merrick (uncredited)
Title Music ArrangerDelia Derbyshire (uncredited)