Last updated 24 March 2024

Cast
Patrick TroughtonDr. Who
Frazer HinesJamie
Deborah WatlingVictoria
Victor MaddernRobson
Roy SpencerHarris
Graham LeamanPrice
Peter DucrowGuard
June MurphyMaggie Harris
John GarvinCarney
Hubert ReesChief Engineer
John Abinerivan Lutyens
Richard MayesChief Baxter
Bill BurridgeQuill
Robert PiersonTechnician (Fury from the Deep)
Bill StraitonTechnician (Fury from the Deep)
Vic TaylorTechnician (Fury from the Deep)
Bobby BeaumontTechnician (Fury from the Deep)
Derek ChaferGuard (Fury from the Deep)
Charles FinchGuard (Fury from the Deep)
John GillOak
Margaret JohnMegan Jones
Brian CullingfordPerkins
Raymond TurtonGuard (Fury from the Deep)
Roy StevensGuard (Fury from the Deep)
Keith SissonsHelicopter Pilot
Terry NelsonTechnician (Fury from the Deep)
Michael DurhamTechnician (Fury from the Deep)
Roy PearceGuard (Fury from the Deep)
Bill StraitonWeed Creature
Robert PiersonWeed Creature
Wallace WildingTechnician (Fury from the Deep)
Mike SmithDouble for Dr Who (helicopter pilot)
Tom WaddenTechnician (Fury from the Deep)