Trailer
Cast
Fred Griffiths
Gracey
Virginia McKenna
Julie Hallam
Moira Lister
Elaine Morell
Laurence Hardy
Sellars
Denholm Elliott
Morell
Bruce Seton
Tallow
John Warner
Baker
Megs Jenkins
Tallow's Sister
George Curzon
Admiral at Party
Russell Waters
A.R.P. Warden
Stanley Baker
Bennett
Liam Redmond
Watts
Meredith Edwards
Yeoman Wells
Barry Letts
Raikes
Paddy Joyce
Sonar Operator (uncredited)
Donald Sinden
Lockhart
Jim Brady
Sailor in Water
Andrew Cruickshank
Scott Brown
Jack Hawkins
Ericson
Glyn Houston
Phillips
Walter Fitzgerald
Warden (uncredited)
John Stratton
Ferraby
Gerard Heinz
Polish Captain
June Thorburn
Doris Ferraby
Alec McCowen
Tonbridge
Harold Goodwin
ASDIC Operator
Don Sharp
Lieutenant-Commander
Richard Leech
Sailor (uncredited)
Alan Webb
Admiral Murray-Forbes (uncredited)
Sam Kydd
Carslake
John Singer
Gray