Director
William A. Graham
DIRECTOR
Writer
Donald S. Sanford
WRITER
Guy Elmes
John C. Champion
Edmund H. North
Stars (in credits order)
James Caan
Commander Bolton
David Sumner
Lt. Davies R.N.V.R
Norman Bowler
Sub. Lt. Pennington
Brian Grellis
C.P.O. Barquist
Paul Young
Leading Seaman Quentin
William Dysart
Lt. Gogan R.N.R.
John Kelland
Sub. Lt. Willis R.N.V.R.
Kenneth Farrington
C.P.O. Boker Knowles
Keith Alexander
Sub. Lt. X-3
Carl Rigg
C.P.O. Kennedy
Steve Kirby
Leading Seaman X-2
Nick Tate
Leading Seaman X-1
George Pravda
Captain Erlich
Diana Beevers
WRNS Officer(uncredited)
Rupert Davies
Vice-Adm. Redmayne(uncredited)
Paul Hansard
Cmdr. Steiner(uncredited)
Hans De Vries
German Lieutenant(uncredited)
Desmond Jordan
Naval Doctor(uncredited)
Dennis Mayers
Sub-Lieutenant on X-1(uncredited)
Doug Robinson
Seaman in Self-defence Demonstration(uncredited)
George Roubicek
Redmayne's Flag Officer(uncredited)
Richard Steele
Captain in Redmayne's Office(uncredited)
