- Novel By:
- Guy Ramsey
- Unknown:
- Rex Rienits
- Produced By:
- Audrey Cameron
- Celandine Power, secretary to the Editor:
- Janet Burnell
- Joan Ware, a reporter:
- Elizabeth London
- Geoffrey Clewes. Editor:
- George Hagan
- Wullle Duff, political correspondent:
- Arthur Lawrence
- Dina Weston, a reporter:
- Grizelda Hervey
- Joe Forbes, her husband, a reporter:
- Richard Bebb
- Geo Garland, news editor:
- Godfrey Kenton
- A. B. Carruthers, managing director:
- Norman Shelley
- Copy messenger:
- Gawn Grainger
- Cecil Loveday, late night sub-editor:
- Richard Waring
- Reginald Walters, assistant editor:
- Derek Birch
- Amy Musgrove, assistant to the literary editor:
- Betty Hardy
- Derek Mounton, M.P:
- Jack Allen
- Mrs. Mounton:
- Molly Rankin
- Mrs. Bloom, a charwoman:
- Eileen Thorndike
- Detective Inspeotor John Pritchard:
- Patrick Barr
- Sergeant Didcot:
- Geoffrey Matthews
- Defective Inspector Trevor Llewellyn:
- Hugh David
- Mavis Garland, Geo's wife:
- Mary Wimbush
- Robert Shean, a financier:
- Raymond Rottett
- Arnold, his manservant:
- Geoffrey Wincott
