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Top Cast
Dirk Bogarde
Sir Mark Loddon / Frank Welney / Number Fifteen
Olivia de Havilland
Lady Margaret Anne Loddon
Paul Massie
Jeffrey Buckenham
Robert Morley
Sir Wilfred
Wilfrid Hyde-White
Hubert Foxley
Anthony Dawson
Gerald Loddon
Richard Wattis
The Judge
Richard Dimbleby
Himself
Martin Miller
Dr. Schrott
Millicent Martin
Maisie
Toke Townley
Associate
Deering Wells
Editor
Bill Shine
The Guide
Ivan Samson
Admiral Loddon
Sebastian Saville
Michael Loddon
Richard Pearson
The Butler
Robert Shaw
First Photographer
Geoffrey Bayldon
Second Photographer
Gordon Sterne
Maddox
Arthur Howard
Car Salesman
Joyce Carey
Miss Sykes
Josephine Middleton
Mrs. Squire
Kenneth Griffith
Fitch
Barbara Archer
Barmaid
Tony Doonan
Man at Bar
Vanda Hudson
Girl in Street
Victor Harrington
Barrister (uncredited)
Sam Kydd
Newspaper Vendor (uncredited)
Reg Thomason
Barrister (uncredited)