Trailer
Cast
David Hutcheson
Captain Sandeman
Charles Farrell
Walker
Alec Clunes
Bit Part
Harold Warrender
Lt. Commander Martin
George Carney
Bates
John Laurie
Gates
George Benson
Parker
Patrick Holt
Holt
Maire O'Neill
Mary Hogan
Clive Brook
Captain Tom Armitage
Edward Chapman
Captain Eckersley
Allan Jeayes
Commander Blount
Anton Diffring
U-Boat Officer
Penelope Dudley-Ward
Mabel
Michael Wilding
Dot
Judy Campbell
Lucy Armitage
Edward Rigby
Mr. Matthews
John Clements
Lieutenant Cranford
John Glyn-Jones
Mate
Stewart Granger
Sutton
Bryan Herbert
Signals Yeoman
Harry Terry
Sailor
Hay Petrie
Minesweeper Skipper
Mervyn Johns
His Mate
Albert Lieven
Commander U.37
John Wengraf
Commander Deutschland