Characters played by Clifton Webb
Lt. Cmdr. Ewen Montagu
Characters played by Gloria Grahame
Lucy Sherwood
Characters played by Robert Flemyng
Lt. George Acres
Characters played by Josephine Griffin
Pam
Characters played by Stephen Boyd
Patrick O'Reilly
Characters played by Laurence Naismith
Adm. Cross
Characters played by Geoffrey Keen
Gen. Nye
Characters played by Moultrie Kelsall
The Father
Characters played by Cyril Cusack
Taxi Driver
Characters played by André Morell
Sir Bernard Spilsbury
Characters played by Michael Hordern
Gen. Cockburn
Characters played by Allan Cuthbertson
Vice-Admiral
Characters played by Joan Hickson
Landlady
Characters played by Terence Longdon
Larry
Characters played by Gibb McLaughlin
Club Porter
Characters played by Miles Malleson
Scientist
Characters played by William Russell
Joe
Characters played by William Squire
Lt. Jewell
Characters played by Richard Wattis
Shop Assistant
Characters played by Ronald Adam
Adams
Characters played by William Baskiville
M15 Agent
Characters played by Gordon Bell
Customs Officer
Characters played by Nigel Bernard
MI5 Agent
Characters played by Michael Brill
Doctor
Characters played by Robert Brown
French
Characters played by D.A. Clarke-Smith
Consul Laurence
Characters played by Bill Cummings
Submariner
Characters played by Carl Duering
German Agent
Characters played by Wolf Frees
Adm. Canaris
Characters played by Everley Gregg
Club Matron
Characters played by Patrick Halpin
American Officer
Characters played by Lloyd Lamble
Passport Officer
Characters played by Ewen Montagu
Air Marshal
Characters played by Brian Oulton
Wills Officer
Characters played by Cicely Paget-Bowman
Secretary
Characters played by Michael Peake
Sailor on Submarine
Characters played by Gerhard Puritz
German Colonel
Characters played by François Périer
Clerk of British Embassy
Characters played by Peter Sellers
Winston Churchill
Characters played by John Welsh
Bank Manager
Characters played by Peter Williams
Adm. Mountbatten