นักแสดง
Pat Ryan
Nightclub Patron (uncredited)
George Sanders
Sir Charles Holland
Vera Miles
Virginia Killain
Junia Crawford
Susan
Barbara Hicks
Miss Price (uncredited)
Ronald Leigh-Hunt
2nd Editor (uncredited)
William Mervyn
Capt. Balfour (uncredited)
Robert Flemyng
Cmdr. John Larkin
Rachel Gurney
Clara Holland
Roger Maxwell
Club Member
Mavis Villiers
Adele Parrish
Richard Marner
Russian Officer Cornered by Max Easton (uncredited)
MacDonald Parke
Jason Parrish (as Macdonald Parke)
Ernest Clark
Cmdr. Bates
James Mason
Cmdr. Max Easton
Basil Dignam
Lt. Cmdr. Evans at P.R.O. (uncredited)
Gordon Harris
2nd Special Branch Man Jones (uncredited)
John Horsley
1st Editor (uncredited)
John Le Mesurier
Head of the Admiralty (uncredited)
Peter Barkworth
Sub Lt. Brown
Frederick Piper
Hall Porter (uncredited)
Oliver Johnston
Minister
Martin Stephens
John Holland
Donald Bisset
Club Member
Desmond Roberts
Club Member
Duncan Lamont
1st Special Branch man Gregson
Harry Andrews
Capt. Graham
Charles Carson
Robert Holland