Last updated 24 March 2024


Part Two

Series Episode Number: 567

World Premiere: Tue 16 Feb 1982 - 7:05pm GMT [BBC One: Not Wales] (United Kingdom)
First Broadcast: Thu 16 Apr 2015 - 8:30pm EDT [Retro TV]
Running Time: 24 minutes 26 seconds

9.30 Million (UK)


Chart Position: 48 () (UK)

Recorded on Thu 21 May 1981 in Television Centre 3



A Terileptil is living in Sir John's basement and is planning to wipe out mankind with plague rats. It decides to arrange for the Doctor and Richard Mace to be beheaded.


Production Team hide uncredited
WriterEric Saward
DirectorPeter Moffatt
ProducerJohn Nathan-Turner
DesignerKen Starkey
Script EditorAntony Root
Title SequenceSid Sutton
Costume DesignerOdile Dicks-Mireaux
Make-up DesignerCarolyn Perry
Studio LightingHenry Barber
Studio SoundAlan Machin
Technical ManagerDerek Martin
Senior CameramanAlec Wheal
Videotape EditorRod Waldron
Visual Effects DesignerPeter Wragg
Video EffectsDave Jervis
Vision MixerCarol Johnson
Film CameramanPeter Chapman
Film SoundStan Nightingale
Film EditorKen Bilton
Production ManagerRoselyn Parker
Production AssociateAngela Smith
Production AssistantJulia Randall
Assistant Floor ManagerAlison Symington
Incidental MusicPaddy Kingsland
Special SoundDick Mills
Grams OperatorGordon Phillipson (uncredited)Info
Floor AssistantKaren Beckett (uncredited)Info
Properties BuyerRuth Hyde (uncredited)
Film Camera AssistantLouis Mulvey (uncredited)
Sound Recordist AssistantTony Wornum (uncredited)
GripStan Swetman (uncredited)
LightingLes Colwell (uncredited)
Film Editor AssistantRobin Scott (uncredited)
Film Operations ManagerGraham Richmond (uncredited)
ArmourerDes Stewart (uncredited)
Fight ArrangerStuart Fell (uncredited)
Show Working SupervisorCliff Richardson (uncredited)Info
Show Working SupervisorFrank Sadler (uncredited)Info
Production SecretaryJane Judge (uncredited)
Production SecretaryFiona Duncan (uncredited)
Title MusicRon Grainer (uncredited)
Title Music ArrangerPeter Howell (uncredited)
Nyssa created byJohnny Byrne (uncredited)