Jon Finch

as Richard Ian Blaney

Barry Foster

as Robert Rusk

Barbara Leigh-Hunt

as Brenda Margaret Blaney

Anna Massey

as Barbara Jane 'Babs' Milligan

Alec McCowen

as Chief Inspector Tim Oxford

Vivien Merchant

as Mrs. Oxford

Billie Whitelaw

as Hetty Porter

Clive Swift

as Johnny Porter

Bernard Cribbins

as Felix Forsythe

Michael Bates

as Sergeant Spearman

Jean Marsh

as Monica Barling

Madge Ryan

as Mrs. Davison

Elsie Randolph

as Gladys

Gerald Sim

as Mr. Usher the Solicitor in Pub

John Boxer

as Sir George

George Tovey

as Neville Salt

Jimmy Gardner

as Hotel Porter

Noel Johnson

as Doctor in Pub

Alfred Hitchcock

as Spectator at Opening Rally (uncredited)

Lewis Alexander

as Man in Crowd (uncredited)

Brian Badcoe

as Man in Crowd (uncredited)

Michael Bilton

as Trial Jury Foreman (uncredited)

Joby Blanshard

as Man in Crowd (uncredited)

Willy Bowman

as Man in Crowd (uncredited)

Jim Brady

as Juror (uncredited)

Donald Campbell

as The Mayor (uncredited)

John Cannon

as Murder Scene Policeman (uncredited)

John Cater

as Man in Crowd (uncredited)

Pauline Chamberlain

as Woman in Crowd (uncredited)

Terence Conoley

as Man in Crowd (uncredited)

Gerry Cowper

as Spectator at Opening Rally (uncredited)

Maxwell Craig

as Fruit Buyer (uncredited)

June Ellis

as Maisie - Barmaid (uncredited)

Hugh Elton

as Man in Crowd (uncredited)

Mabel Etherington

as Restaurant Patron (uncredited)

Charles Farrell

as Complaining Pub Customer (uncredited)

Harry Fielder

as Covent Garden Lorry Driver (uncredited)

Otto Friese

as Juror (uncredited)

Alan Gibbs

as Man in Crowd (uncredited)

Roberta Gibbs

as Body in River Thames (uncredited)

Jill Goldston

as Woman in Crowd (uncredited)

John Golightly

as CID Police Photographer (uncredited)

Josie Grant

as Woman in Crowd (uncredited)

Aidan Harrington

as Man in Crowd (uncredited)

Victor Harrington

as Spectator on South Bank (uncredited)

Drewe Henley

as Forensics Technician (uncredited)

Hubert Hill

as Man in Crowd (uncredited)

Ken Hutchins

as Man in Crowd (uncredited)

Barry Keegan

as Hospital Patient (uncredited)

Juba Kennerley

as Restaurant Patron (uncredited)

Roy Lansford

as Man in Crowd (uncredited)

Ricky Lansing

as Market Worker (uncredited)

Tommy Little

as Man in Crowd (uncredited)

Doreen Mantle

as Woman in Crowd (uncredited)

Mary Maxfield

as Restaurant Patron (uncredited)

Bunny May

as Barman (uncredited)

Margaret Nolan

as Young Woman (uncredited)

James Payne

as Covent Garden Taxi Driver (uncredited)

Bob Ramsey

as Man in Pub (uncredited)

Robert Rietti

as Doctor (voice) (uncredited)

Phillip Ross

as Policeman (uncredited)

Michael Sheard

as Jim (uncredited)

Jack Silk

as Police Driver (uncredited)

Roy Skelton

as CID Man (uncredited)

Colin Spaull

as Man (uncredited)

Richard Wyler

as Truck Driver (uncredited)

Reg Thomason

as Court Official (uncredited)

Susan Travers

as Victim (uncredited)

Joseph Tregonino

as Pub Patron (uncredited)

Paul Tropea

as Boy at the Thames (uncredited)

Bert Vivian

as Man in Crowd (uncredited)

Pearl Walters

as Restaurant Patron (uncredited)

Rita Webb

as Mrs Rusk (uncredited)

Eric Wetherell

as Juror (uncredited)

Fred Wood

as Pub Patron (uncredited)

Martin Wyldeck

as Sir George's Aide (uncredited)

Jeremy Young

as Detective (uncredited)