Last updated 24 March 2024


Part Four

Series Episode Number: 643

World Premiere: Sat 27 Sep 1986 - 5:46pm BST [BBC One] (United Kingdom)
First Broadcast: Wed 10 Jun 2015 - 8:30pm EDT [Retro TV]
Running Time: 24 minutes 20 seconds

3.70 Million (UK)

Appreciation Index: 72 (UK)

Chart Position: 97 () (UK)

Recorded on Sun 11 May 1986 in Television Centre 3



The Doctor is foxed by Drathro's logic so it takes Glitz's blunt lies to buy them some time until Ravolox can be saved. Meanwhile the Tribe make a foolhardly attack on Marb Arch.


Characters hide uncredited
The DoctorColin Baker
PeriNicola Bryant
The ValeyardMichael Jayston
The InquisitorLynda Bellingham
KatrycaJoan Sims
GlitzTony Selby
DrathroRoger Brierley
MerdeenTom Chadbon
Broken ToothDavid Rodigan
DibberGlen Murphy
BalazarAdam Blackwood
HumkerBilly McColl
TandrellSiƓn Tudor Owen
GrellTimothy Walker
Native (Mysterious Planet)Malcolm Ross (uncredited)
Native (Mysterious Planet)Verdi Stewart (uncredited)
Time LordAlan Butler (uncredited)
Worker (Mysterious PLanet)Barry Jacobs (uncredited)
Worker (Mysterious PLanet)Oscar Peck (uncredited)
Worker (Mysterious PLanet)Paul Ellison (uncredited)
Worker (Mysterious PLanet)Rhett Stevens (uncredited)
Worker (Mysterious PLanet)Eric Corlett (uncredited)
Worker (Mysterious PLanet)Derek Holt (uncredited)
Worker (Mysterious PLanet)Ian Johns (uncredited)
Worker (Mysterious PLanet)Tony McEvoy (uncredited)
Worker (Mysterious PLanet)David Wild (uncredited)
Worker (Mysterious PLanet)Laurie Goode (uncredited)
Worker (Mysterious PLanet)Dave Hanson (uncredited)
Train GuardJohn Emms (uncredited)
Train GuardMark Kirby (uncredited)
Court ClerkGeoff Whitestone (uncredited)
Time LordGuy Matthews (uncredited)
Time LordKen Pritchard (uncredited)
Time LordKenneth Thomas (uncredited)
Time LordLew Hooper (uncredited)
Time LordDerek Hunt (uncredited)
Time LordDavid Eynon (uncredited)
Time LordDavid Bache (uncredited)
Time LordBob Hargreaves (uncredited)
Time LordJack Horton (uncredited)
Time LordLeslie Weekes (uncredited)
Time LordJohn Buckmaster (uncredited)
Time LordLeslie Fry (uncredited)
Time LordJim Delaney (uncredited)
Time LordLlewellyn Williams (uncredited)
Time LordRoy Seeley (uncredited)
Time Lord GuardJonny Lee-Harris (uncredited)
Time Lord GuardRodney Cardiff (uncredited)
Time Lord GuardPeter Gates Fleming (uncredited)
Time Lord GuardJohn Capper (uncredited)
Time Lord GuardGary Forecast (uncredited)
Native (Mysterious Planet)Peter Dukes (uncredited)
Native (Mysterious Planet)Christopher Holmes (uncredited)
Native (Mysterious Planet)Paul Le Comber (uncredited)
Native (Mysterious Planet)David Hampson (uncredited)
Native (Mysterious Planet)Richard Aldridge (uncredited)
Train DriverStewart Newton (uncredited)
DrathroPaul McGuiness (uncredited)
Native (Mysterious Planet)Alan Richards (uncredited)
TribesmanT Melbourne (uncredited)
Worker (Mysterious PLanet)Darren Mango (uncredited)
Worker (Mysterious PLanet)Steve Ritchie (uncredited)
Worker (Mysterious PLanet)Wilbert Johnson (uncredited)
Train GuardGlen McLaughlan (uncredited)
CrewmanRobert Goodman (uncredited)
DrathroPaul McGuiness (uncredited)