Submarine X-1

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.

• 
  William A. Graham

• 
  James Caan
  Cmdr. Richard Bolton, RNVR
• 
  David Sumner
  Lt. Davies R.N.V.R
• 
  Norman Bowler
  Sub-Lt. Pennington, RN
• 
  Paul Young
  Leading Seaman Quentin
• 
  Brian Grellis
  CPO Barquist X 3
• 
  William Dysart
  Lt. Robert Talbot Gogan R.N.R.
• 
  John Kelland
  Sub-Lt. Keith Willis, RNVR
• 
  Kenneth Farrington
  CPO Boker Knowles
• 
  Carl Rigg
  CPO Norman Kennedy
• 
  Steve Kirby
  Leading Seaman X-2
• 
  Nick Tate
  Leading Seaman X-1
• 
  George Pravda
  Capt. Erlich of the 'Lindendorf'
• 
  Rupert Davies
  Vice Admiral Redmayne (uncredited)
• 
  Keith Alexander
  Sub. Lt. X-3
• 
  Diana Beevers
  WRNS Officer (uncredited)
• 
  Paul Hansard
  Cmdr. Steiner (uncredited)
• 
  Luke Hanson
  German Lieutenant (uncredited)
• 
  Desmond Jordan
  Naval Doctor (uncredited)
• 
  Dennis Mayers
  Sub-Lieutenant on X-1 (uncredited)
• 
  Doug Robinson
  Seaman in Self-defence Demonstration (uncredited)