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