On screen
Cast
30 credited performers
John Bentley
Superintendent Wills
Patrick Allen
Dr. Nelson Pollard
Jacqueline Ellis
Elsa Marlowe
Wilfrid Brambell
Lock-Keeper
John Glyn-Jones
Dr. Maurice Tarn
Artwork unavailable
Jane Murdoch
Honeymoon Wife
Artwork unavailable
Brian McDermott
Det. Sgt. Stillman
Artwork unavailable
Gerald Andersen
Major Paul Amery
Artwork unavailable
Edward Atienza
Clerk
Ric Young
Johnny Choto
Robert Lee
Mr. Nam Lee
Yvonne Buckingham
Miss Russell
William Gaunt
Mitch Hallam
Artwork unavailable
Michael Deacon
Angus
Artwork unavailable
Arnold Lee
Soyoki
John Horsley
Pathologist
Lesley Nunnerley
Vera Martin
Artwork unavailable
Malcolm Russell
Joe Martin
Yvonne Shima
Tamaya
Artwork unavailable
Keith Faulkner
Lock-keeper's Assistant
Artwork unavailable
Myo Toon
1st Chinese Man
Artwork unavailable
Sano Wong
2nd Chinese Man
Burt Kwouk
Captain Feng
Artwork unavailable
Timothy Parkes
Honeymoon Husband
Howard Pays
Police Sgt.
Artwork unavailable
Peter Hager
Warden
Don McKillop
Reporter
Robert Russell
Uniformed Sgt.
Artwork unavailable
Steve Reagan
Police Constable
Artwork unavailable
Ping Ping Sam
Instructor in Gym