| Cast | Jon Pertwee (as The Doctor), Katy Manning (as Jo Grant), Roger Delgado (as The Master), Clive Morton (as Trenchard), Declan Mulholland (as Clark), Hugh Futcher (as Hickman), Brian Justice (as Wilson), Terry Walsh (as Barclay), Stanley McGeagh (as Drew), Royston Tickner (as Robbins), Neil Seiler (as Radio Operator), Martin Boddey (as Walker), Edwin Richfield (as Captain Hart), June Murphy (as 3rd Officer Jane Blythe), Norman Atkyns (as Rear Admiral), Donald Sumpter (as Commander Ridgeway), David Griffin (as Lieutenant Commander Mitchell), Brian Vaughan (as Lieutenant Commander Watts), Christopher Wray (as Leading Seaman Lovell), Alec Wallis (as LeadingTelegraphist Bowman), Eric Mason (as CPO Smedley), John Caesar (as CPO Myers), Colin Bell (as CPO Summers), Rex Rowland (as A/B Girton), Peter Forbes-Robertson (as Chief Sea Devil), Pat Gorman (as Sea Devil) |
