 |
Clive Brook as Captain Tom Armitage |
 |
John Clements as Lieutenant Cranford |
 |
Edward Chapman as Captain Eckersley |
 |
Judy Campbell as Lucy Armitage |
 |
Penelope Dudley-Ward as Mabel |
 |
Edward Rigby as Mr. Matthews |
 |
Allan Jeayes as Commander Blount |
 |
Michael Wilding as Dot |
 |
Harold Warrender as Lt. Commander Martin |
 |
David Hutcheson as Captain Sandeman |
 |
George Carney as Bates |
 |
Al Millen as Knowles |
 |
Charles Farrell as Walker |
 |
John Laurie as Gates |
 |
George Benson as Parker |
 |
Hay Petrie as Minesweeper Skipper |
 |
Mervyn Johns as His Mate |
 |
Albert Lieven as Commander U.37 |
 |
John Wengraf as Commander Deutschland |
|
Edward Lexy as Merchantman Skipper |
 |
John Glyn-Jones as Mate |
|
John Boxer as German Captain |
|
John Carol as Edmonds |
 |
Alec Clunes as Bit Part |
 |
Anton Diffring as U-Boat Officer |
|
Derek Elphinstone as Hawkins |
|
Alf Goddard as Bosun's Mate |
 |
Stewart Granger as Sutton |
 |
Bryan Herbert as Signals Yeoman |
 |
Patrick Holt as Holt |
|
James Knight as Admiral |
 |
Maire O'Neill as Mary Hogan |
|
Charles Rolfe as Peacock - Wardroom Steward |
 |
Harry Terry as Sailor |
|
Charles Williams as 'Shorty' Howard |
|
Howard Lang as Gunnery Officer (uncredited) |
| Directing | Pen Tennyson | Director |
| Writing | Pen Tennyson | Screenplay |
| Art | Wilfred Shingleton | Art Direction |
| Sound | Ernest Irving | Music |
| Crew | Günther Krampf | Cinematography |
| Production | Michael Balcon | Producer |
| Writing | Patrick Kirwan | Screenplay |
| Editing | Ray Pitt | Editor |
| Crew | Roy Kellino | Cinematography |
