Ralph Richardson
Sir Wilfred Robarts
Deborah Kerr
Nurse Plimsoll
Beau Bridges
Leonard Vole
Donald Pleasence
Mr. Myers
Wendy Hiller
Janet Mackenzie
Diana Rigg
Christine Vole
David Langton
Mayhew
Richard Vernon
Brogan-Moore
Peter Sallis
Carter
Michael Gough
Judge
Frank Mills
Chief Inspector Hearne
Michael Nightingale
Clerk of the Court
Peter Copley
Dr. Harrison
Patricia Leslie
Mrs. French
John Kidd
Court Usher
Ken Kitson
Policeman (as Kit Kitson)
Wilfred Grove
Photographer
Primi Townsend
Diana
Andrew MacLachlan
Jury Foreman
Aubrey Woods
Tailor
Zulema Dene
Miss Johnson
Barbara New
Miss O'Brien
Jenny Donnison
1st Nurse
Ceri Jackson
2nd Nurse
Harold Coyne
Juror (uncredited)
Walter Henry
Juror (uncredited)
Gerry Judge
Man in Court (uncredited)
Reg Thomason
Barrister (uncredited)
Harry Van Engel
Juror (uncredited)