Terence Morgan
Inspector Ralph Brown
Acting
Yolande Donlan
Jill Wilson
Acting
Anthony Oliver
Inspector Newcombe
Acting
André Morell
Robert Isaac Pitt
Acting
Reginald Beckwith
Harold
Acting
Ursula Howells
Antonia Pitt
Acting
Guido Lorraine
Pietr Revski
Acting
Basil Dignam
Wing Commander Riddle
Acting
Raymond Rollett
Sir Robert Rosper
Acting
Fred Johnson
Professor Robinson-Heston
Acting
Arnold Marlé
Karl Kopek
Acting
Mark Dignam
Prison Governor
Acting
John Horsley
Assistant Commissioner
Acting
Barry Lowe
Eric Colter
Acting
Diana Lambert
Young Woman
Acting
Petra Davies
Pitt's Maid (uncredited)
Acting
Brown Derby
Police Sergeant (uncredited)
Acting
Michael Godfrey
Chertwell Security Guard (uncredited)
Acting
Arthur Lovegrove
Nick (uncredited)
Acting
Louis Matto
Waiter (uncredited)
Acting
Guy Mills
Brown's Driver (uncredited)
Acting
Stuart Mitchell
Head Waiter (uncredited)
Acting
Jim Brady
Nick's Thug (uncredited)
Acting
Cyril Renison
Detective Sergeant Enders (uncredited)
Acting