Clive Brook

Captain Tom Armitage

Edward Chapman

Captain Eckersley

Judy Campbell Exner

Lucy Armitage

Penelope Dudley-Ward

Mabel

Edward Rigby

Mr. Matthews

Michael Wilding

Dot

Harold Warrender

Lt. Commander Martin

John Laurie

Gates

George Benson

Parker

Hay Petrie

Minesweeper Skipper

Mervyn Johns

His Mate

John Wengraf

Commander Deutschland

John Glyn-Jones

Mate

John Boxer

German Captain

John Carol

Edmonds

Alec Clunes

Bit Part

Anton Diffring

U-Boat Officer

Stewart Granger

Sutton

Patrick Holt

Holt

Charles Rolfe

Peacock - Wardroom Steward