British Ambassador
Dr. Collins
The Judge
Gen. St. John
Justice Bailey
Lord Carradine
Major Bell / Sir Arnold Gates
Lord Boyne
Col. Gore
Nurse
Captain Warner
Inspector MacDonald
Group Capt. J.N. Stagg (uncredited)
Jerry Lane
Inspector Madden
Charles Hammond
Captain Joseph (Mutt) Summers, C.B.E.
Dr. Geoffrey Allen
John Everton
Lt. Cdr. Sinclair
Supt. Roberts
Inspector Frampton
Robert
Inspector Williams
Ken Wharton
Captain Tom Ashley, HMS Amesbury
Vincent Humphries
Insp. Morley
King Richard
Robert Welling
Sir Archibald Asher
Divisional Detective Inspector
Hedy's Husband
Bert - Adam's Friend (uncredited)
Detective at Cabby's Restaurant
Mr Bruce
Richard Ferraby
Undetermined Role
John Blake
Det. Insp. Alan Wembury
Flight Commander Pat Avon
Lord Hastings
Designer
Gerry Melville
World Transport Official (uncredited)
Shop Assistant
Bob Seymour