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)