Characters played by Patrick Holt
Inspector Gregory
Characters played by Emrys Jones
Howard Rogers
Characters played by Honor Blackman
Ann Rogers
Characters played by Bruce Beeby
Det. Sergeant Conway
Characters played by John Horsley
Mr. Fisher
Characters played by Robert Perceval
Bank Manager
Characters played by Wally Patch
Barman
Characters played by Frank Pettitt
Fred
Characters played by Benedicta Leigh
Policewoman Scott
Characters played by Peter Glaze
Station Booking Clerk
Characters played by Vi Stevens
Landlady
Characters played by Howard Greene
River Police Sergeant
Characters played by Raymond Smith
River Police Constable
Characters played by Lawrence James
Uniformed Constable
Characters played by Reginald Hearne
Doctor
Characters played by Barry Linehan
Forensic Chemist
Characters played by Gerry Duggan
Norman Cole
Characters played by Colin Rix
Plain Clothes Detective
Characters played by Bill Mills
Photographer
Characters played by Pat Shaw
Uniformed Policewoman
Characters played by John Tatham
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