All Cast
Richard Attenborough
Dripper Daniels
James Donald
Lt. Richard Jennings, No. 1
Sonny Tufts
Yank Flanagan
Trevor Howard
Lt. Cmdr Hugh Alginon Fraser
Bernard Lee
A.S. 'Stripey' Wood
Dora Bryan
Glad Flanagan
Hugh Williams
Captain David G. Wilson
Robin Bailey
Lt. Michael Grant, Pilot
Meredith Edwards
Jones
John Forrest
Appleby the Captain's Steward
Patric Doonan
Petty Officer Martin
Sid James
Ned Hardy, Landlord Golden Bull
Harold Siddons
Adm. Bartlett
William Russell
Crewman
Joan Rice
June Mallory, WRNS cypher officer