Last updated 24 March 2024


Episode Four

Series Episode Number: 509

World Premiere: Sat 22 Sep 1979 - 6:17pm BST [BBC One] (United Kingdom)
First Broadcast: Fri 29 Jun 2001 - 10:30pm CDT [Prairie Public Television]
Running Time: 26 minutes 5 seconds

14.40 Million (UK)

Appreciation Index: 64 (UK)

Chart Position: 27 () (UK)

Recorded on Mon 16 Jul 1979 in Television Centre 1



The Doctor discovers that the Daleks need Davros to break the stalemate in their war with the Movellans, and the Movellans now want the Doctor to fulfil the same purpose for them.


Characters hide uncredited
Doctor WhoTom Baker
RomanaLalla Ward
TyssanTim Barlow
Commander SharrelPeter Straker
DavrosDavid Gooderson
AgellaSuzanne Danielle
LanTony Osoba
Movellan Guard Cassandra
JallPenny Casdagli
VeldanDavid Yip
Dalek OperatorCy Town
Dalek OperatorMike Mungarvan
Dalek OperatorToby Byrne (uncredited)
Dalek OperatorTony Starr (uncredited)
Dalek VoiceRoy Skelton
Dalek VoiceDavid Gooderson (uncredited)
MovellanPeter Coleclough (uncredited)
MovellanSusan Lyle (uncredited)
SlaveSandra Kneller (uncredited)
SlaveHazel O'Mara (uncredited)
SlaveDenise Potter (uncredited)
SlaveMark Boyden (uncredited)
SlaveClinton Price (uncredited)
SlaveErroll Turner (uncredited)
SlaveJulian Woods (uncredited)
SlaveHarold Gasnier (uncredited)
SlaveSue Dorning (uncredited)
SlaveSharon Richardson (uncredited)
SlaveLeslie Rae (uncredited)
SlaveMalcolm Clarke (uncredited)
SlaveDavid Lockner (uncredited)
SlaveVenicia Day (uncredited)
SlaveErrol M Shaker (uncredited)
SlaveRon Tarr (uncredited)
SlaveLeroy Mitchell (uncredited)
SlaveHuntley Young (uncredited)
SlaveLouis St Juste (uncredited)
SlaveMarcus Powell (uncredited)
MovellanTawny Sands (uncredited)
MovellanInga Daly (uncredited)
Movellan Jules (uncredited)
MovellanChrissi Hewett (uncredited)
MovellanKen Kajadhar (uncredited)
MovellanWilson M George (uncredited)
MovellanBruce Callender (uncredited)