Doctor Doctor Who Guide

Last updated 09 January 2020


Episode Six

Episode Six

Series Episode Number: 317

World Premiere: Sat 1 Apr 1972 - 5:51pm BST [BBC One] (United Kingdom)
First Broadcast: Mon 24 Nov 1975 - 6:30pm CST [WTTW 11 Chicago]
Running Time: 25 minutes 24 seconds

8.50 Million (UK)


Chart Position: 47 () (UK)

Recorded on Tue 14 Dec 1971 in TC8
Archive State: PAL 2 VT



The Sea Devils come to the surface and attack the Naval base. The Doctor is forced to create a machine that will awaken the creatures across the entire world.


Production Team hide uncredited
WriterMalcolm Hulke
DirectorMichael E Briant
ProducerBarry Letts
DesignerTony Snoaden
Script EditorTerrance Dicks
Studio LightingMike Jefferies
Studio SoundTony Millier
Studio SoundColin Dixon
CostumesMaggie Fletcher
Make-upSylvia James
Visual Effects DesignerPeter Day
Fight Arranger HAVOC
Film CameramanPeter Sargent
Film EditorMartyn Day
Special SoundBrian Hodgson
Incidental MusicMalcolm Clarke
Incidental Music BBC Radiophonic Workshop
Title MusicRon Grainer
With thanks to Royal Navy
Title Music BBC Radiophonic Workshop
Grams OperatorBarry Bonner (uncredited)
Film Operations AssistantPW Walsh (uncredited)
Film Sound AssistantAlec Christison (uncredited)
Film Camera AssistantJohn Jefford (uncredited)
Make-Up AssistantJoanne Burn (uncredited)
Technical ManagerPeter Valentine (uncredited)
Film Unit ElectricianJohn Collins (uncredited)
Film Camera AssistantIan Punter (uncredited)
Costume AssistantGrace Dawson (uncredited)
Artist BookingSybil Cave (uncredited)
Property BuyerJohn Watson (uncredited)
Production SecretarySarah Newman (uncredited)
Floor AssistantTony Cox (uncredited)
Costume AssistantJack Roe (uncredited)
Artist BookingPhyllis Page (uncredited)
Vision MixerJohn Gorman (uncredited)
Production AssistantPauline Silcock (uncredited)
Film Unit ElectricianTony Thorpe (uncredited)
GripBill Paget (uncredited)
Film Camera AssistantRoger Twyman (uncredited)
ArmourerDouglas Needham (uncredited)
Costume AssistantBarry Simmons (uncredited)
Fight ArrangerDerek Ware (uncredited)
AssistantPauline Silcock (uncredited)
Property BuyerJoe Bates (uncredited)
Assistant Floor ManagerJohn Bradburn (uncredited)
Production AssistantColin Dudley (uncredited)
Title Music ArrangerDelia Derbyshire (uncredited)
Title SequenceBernard Lodge (uncredited)
Location AssistantJennie Betts (uncredited)
DriverS Hedges (uncredited)
DriverEdward Kirkham (uncredited)
Location Transport Pergo Minibuses (uncredited)
Pergo DriverBert West (uncredited)
Location Catering Cinefood (uncredited)
Location Trailers Seacliff Holiday Caravans (uncredited)
Visual Effects AssistantLen Hutton (uncredited)