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