Cast
Gregory Peck
Col. Lewis Pugh
Roger Moore
Capt. Gavin Stewart
David Niven
Col. W.H. Grice
Trevor Howard
Jack Cartwright
Barbara Kellerman
Mrs. Cromwell
Patrick Macnee
Major 'Yogi' Crossley
Kenneth Griffith
Charlie Wilton
Patrick Allen
Colin Mackenzie
Wolf Kahler
Trompeta
Robert Hoffmann
U-Boat Captain
Crew
Maurice Binder
Main Title Designer
Andrew V. McLaglen
Director
James Leasor
Writer
Reginald Rose
Writer
John Glen
Editor
Roy Budd
Original Music Composer
Eddie Powell
Stunts
Euan Lloyd
Producer
Erwin C. Dietrich
Producer
Recommended
Info provided by The Movie Database. Watch sources provided by JustWatch.