Asesinato por decreto: Reparto
Christopher Plummer
Sherlock Holmes
James Mason
Dr. Watson
David Hemmings
Inspector Foxborough
Susan Clark
Mary Kelly
Anthony Quayle
Sir Charles Warren
John Gielgud
Prime Minister
Frank Finlay
Inspector Lestrade
Donald Sutherland
Robert Lees
Geneviève Bujold
Annie Crook
Chris Wiggins
Dr. Hardy
Tedde Moore
Mrs. Lees
Catherine Kessler
Carrie
Terry Duggan
Danny
Peter Jonfield
William Slade
Roy Lansford
Sir Thomas Spivey
Ron Pember
Makins
Ken Jones
Dock Guard
June Brown
Annie Chapman
Hilary Sesta
Catherine Eddowes
Anthony May
Lanier
Betty Woolfe
Mrs. Hudson
Iris Fry
Elizabeth Stride
Geoffrey Russell
Home Secretary
Peggy Ann Clifford
Lees' Housekeeper
Ann Mitchell
Jane
Katherine Stark
Molly
Elaine Ives-Cameron
Ellen
Stella Courtney
Betty
Judy Wilson
Emily
Roy Pattison
Carroll
Victor Langley
Prince of Wales
Pamela Abbott
Princess Alexandra
Robin Marchal
Duke of Clarence "Eddy"
Richard Pescud
Doctor
Pat Brackenbury
Nurse
Dan Long
Constable Long
Michael Cashman
Constable Watkins
Tony Clarkin
Police Sergeant (uncredited)
Peter Dean
Police Constable (uncredited)
Jim McManus
Policeman (uncredited)
Norman Gay
Distinguished Gentleman (uncredited)