After losing a submarine and fifty crew in a battle with a German ship during WWII, a Royal Navy officer gets a second chance in a daring raid with midget subs.
Cmdr. Richard Bolton, RNVR
Lt. Davies R.N.V.R
Sub-Lt. Pennington, RN
Leading Seaman Quentin
CPO Barquist X 3
Lt. Robert Talbot Gogan R.N.R.
Sub-Lt. Keith Willis, RNVR
CPO Boker Knowles
CPO Norman Kennedy
Leading Seaman X-2
Leading Seaman X-1
Capt. Erlich of the 'Lindendorf'
Vice Admiral Redmayne (uncredited)
Sub. Lt. X-3
WRNS Officer (uncredited)
Cmdr. Steiner (uncredited)
German Lieutenant (uncredited)
Naval Doctor (uncredited)
Sub-Lieutenant on X-1 (uncredited)
Seaman in Self-defence Demonstration (uncredited)
Redmayne's Flag Officer (uncredited)
Captain in Redmayne's Office (uncredited)
