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David Farrar as Sexton Blake |
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Dennis Price as Dick Warren |
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Pamela Stirling as Stella Duncan |
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Julien Mitchell as James Duncan (as Julian Mitchell) |
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Cyril Smith as P.C. Morgan |
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Ferdy Mayne as Paul Dacier |
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Dennis Arundell as Phillip Rainsford |
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Johnnie Schofield as Purvis |
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Paul Croft as Marat |
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Kynaston Reeves as Beales |
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Desmond Roberts as Cotter |
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Danny Green as Carl |
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Patric Curwen as Dr. Grey |
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Tony Arpino as Fox |
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Vincent Holman as Col. Wills |
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Howard Douglas as Preston |
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Billy Howard as Sergeant Crossby |
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Anders Timberg as Wrexham |
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H Victor Weske as Otto |
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Gerald Pring as Sir Horace Cranston |
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Noel Dainton as Van Schuster |
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Olive Walter as Housekeeper |
| Directing | John Harlow | Director |
| Directing | Denis Johnson | Assistant Director |
| Writing | John Harlow | Writer |
| Production | Louis H. Jackson | Producer |
| Crew | James Wilson | Cinematography |
| Editing | Lito Carruthers | Editor |
| Art | C. Wilfred Arnold | Art Direction |
| Costume & Make-Up | Maude Churchill | Wardrobe Supervisor |
