Reparto y equipo

Andrew V. McLaglen

Reginald Rose

James Leasor

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

Dan van Husen U-Boat First Officer

George Mikell Captain of Ehrenfels

Jürgen Andersen First Officer of Ehrenfels

Bernard Archard Underhill

Martin Benson Mr. Montero

Euan Lloyd

Erwin C. Dietrich

Roy Budd

John Glen