Ηθοποιοί επεισοδίου
William HartnellThe Doctor
Jon PertweeThe Doctor
Patrick TroughtonThe Doctor
Tom BakerThe Doctor
Nicholas CourtneyThe Brigadier
Peter DavisonThe Doctor
Caroline JohnLiz Shaw
Ελίζαμπεθ ΣλέιντενSarah Jane Smith
John LeesonK9 (voice)
Mark StricksonTurlough
Lalla WardRomana
Carole Ann FordSusan Foreman
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Paul JerrichoThe Castellan
Roy SkeltonDalek (voice)
Συντελεστές
Peter MoffattDirectorTerrance DicksWriterM.A.C. AdamsEditorRon GrainerMusicPeter HowellMusicDick MillsSound EngineerJeremy SilberstonProduction ManagerJune CollinsProduction AssistantJean DavisProduction AssistantJohn BakerCamera OperatorJohn GatlandSoundShirley CowardMixing EngineerPeter HowellOriginal Music Composer