Discover
Dirk Bogarde
Melville Farr
Sylvia Syms
Laura Farr
Dennis Price
Calloway
Anthony Nicholls
Lord Charles Fullbrook
Peter Copley
Paul Mandrake
Norman Bird
Harold Doe
Peter McEnery
Jack Barrett
Donald Churchill
Eddy Stone
Derren Nesbitt
Sandy
John Barrie
Inspector Harris
John Cairney
Bridie
Alan MacNaughtan
Scott Hankin
Nigel Stock
Phip
Frank Pettitt
Barman (as Frank Pettit)
Mavis Villiers
Madge
Charles Lloyd Pack
Henry
Hilton Edwards
P.H.
Margaret Diamond
Miss Benham
David Evans
Mickey
Noel Howlett
Patterson
Alan Howard
Frank
Dawn Beret
Sylvie
Frank Thornton
George - Henry's Assistant (uncredited)
John Bennett
Undercover Detective (uncredited)
Basil Dignam
Barrister (uncredited)
Jim Brady
Transport Cafe Patron (uncredited)
Jack Taylor
Building Site Foreman (uncredited)
Nora Gordon
Farr's Housekeeper (uncredited)
Camera
Otto Heller
Director of Photography
H. A. R. Thomson
Camera Operator
George Courtney Ward
Still Photographer
Editing
John D. Guthridge
Editor
Sound
Philip Green
Original Music Composer
Gordon K. McCallum
Sound Recordist
C. C. Stevens
Sound Recordist
Les Wiggins
Sound Editor
Philip Green
Conductor
Camera
Otto Heller
Director of Photography
H. A. R. Thomson
Camera Operator
George Courtney Ward
Still Photographer
Editing
John D. Guthridge
Editor
Sound
Philip Green
Original Music Composer
Gordon K. McCallum
Sound Recordist
C. C. Stevens
Sound Recordist
Les Wiggins
Sound Editor
Philip Green
Conductor