Last updated 24 March 2024


Part Two

Series Episode Number: 519

World Premiere: Sat 1 Dec 1979 - 6:04pm GMT [BBC One] (United Kingdom)
First Broadcast: Fri 21 Sep 2001 - 10:30pm CDT [Prairie Public Television]
Running Time: 22 minutes 44 seconds

9.60 Million (UK)


Chart Position: 31 () (UK)

Recorded on Tue 14 Aug 1979 in Television Centre 6



The Doctor and Romana are horrified to discover that Tryst has been storing real life forms in his CET machine and that someone is smuggling the dangerous narcotic, Vraxoin.


Characters hide uncredited
Doctor WhoTom Baker
RomanaLalla Ward
TrystLewis Fiander
RiggDavid Daker
DymondGeoffrey Bateman
DellaJennifer Lonsdale
StottBarry Andrews
FiskGeoffrey Hinsliff
CostaPeter Craze
PassengerAnnette Peters
PassengerLionel Sansby
PassengerPeter Roberts
PassengerMaggie Petersen
Voice of K-9David Brierley
MandrelDavid Korff (uncredited)
MandrelDerek Suthern (uncredited)
MandrelJames Muir (uncredited)
MedicGary Dean (uncredited)
MedicReg Turner (uncredited)
PassengerAnn Garry Lee (uncredited)
PassengerAudrey Searle (uncredited)
PassengerDerek Hunt (uncredited)
PassengerGreg Marlow (uncredited)
PassengerJay Roberts (uncredited)
PassengerJean Channon (uncredited)
PassengerJenny Roberts (uncredited)
PassengerJudy Rodger (uncredited)
PassengerMadelaine Simpson (uncredited)
PassengerPat Judge (uncredited)
StewardessSally Sinclair (uncredited)
Wounded PassengerBilly Gray (uncredited)