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.
as Cmdr. Richard Bolton, RNVR
as Lt. Davies R.N.V.R
as Sub-Lt. Pennington, RN
as Leading Seaman Quentin
as CPO Barquist X 3
as Lt. Robert Talbot Gogan R.N.R.
as Sub-Lt. Keith Willis, RNVR
as CPO Boker Knowles
as CPO Norman Kennedy
as Leading Seaman X-2
as Leading Seaman X-1
as Capt. Erlich of the 'Lindendorf'
as Vice Admiral Redmayne (uncredited)
as Sub. Lt. X-3
as WRNS Officer (uncredited)
as Cmdr. Steiner (uncredited)
as German Lieutenant (uncredited)
as Naval Doctor (uncredited)
as Sub-Lieutenant on X-1 (uncredited)
as Seaman in Self-defence Demonstration (uncredited)
as Redmayne's Flag Officer (uncredited)
as Captain in Redmayne's Office (uncredited)
