Top Cast
John Mills
Major Harvey
Cecil Parker
Colonel E.F. Logan
Sid James
Porter YMCA
Bryan Forbes
Butterfield
Barbara Hicks
Hester
Michael Hordern
Governor of Gibralter
Marius Goring
Karl Nielson
Vera Day
Angela
M.E. Clifton James
Himself / General Montgomery
Patrick Allen
Col. Mathers
Patrick Holt
Col. Dawson
Leslie Phillips
Major Tennant
Duncan Lamont
Wing Cdr. Bates
Anthony Sagar
Villa - Guard Sergeant
Kenneth J. Warren
F/O Davies
James Hayter
Sgt. Adams
Brian Weske
Despatch Rider
Harry Fowler
Civilian - End Scene
Bill Nagy
American Captain
Edward Judd
Another Soldier
Victor Maddern
Orderly Sergeant
Desmond Roberts
Brigadier
Victor Beaumont
Gottmann - Commando
Alfie Bass
The Small Man
John Le Mesurier
Adjutant RAPC
Walter Gotell
German Colonel
George Eugeniou
Garcia
John G. Heller
German Sergeant
Frederick Jaeger
Junior German Officer
David Lodge
Sergeant RAPC
MacDonald Parke
American General
Marne Maitland
Arab Proprietor
Maureen Connell
Peggy
Sam Kydd
Go-Between
Allan Cuthbertson
Guards Officer
Ronnie Stevens
MI5 Tail
Steven Berkoff
Minor Role (uncredited)