The British sleuth (Walter Pidgeon) leaves retirement to help a Scotland Yard woman (Margaret Leighton) catch thieves armed with radar.
Margaret Leighton | Sgt. Helen Smith | |
Robert Beatty | Arthur Gunns | |
David Tomlinson | Algernon 'Algy' Longworth | |
Peggy Evans | Molly | |
Charles Victor | Insp. McIver | |
Bernard Lee | Col. Webson |
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