Peter Finch

Johnnie Byrne

Stanley Holloway

Fred Andrews

Mary Peach

Pauline West

Donald Pleasence

Renfrew

Billie Whitelaw

Mary

Hugh Burden

Tim Maxwell

Rosalie Crutchley

Alice Byrne

Dennis Price

Flagg

Mervyn Johns

Charlie Young

Michael Goodliffe

Dr. West

Geoffrey Keen

The Prime Minister - Reginald Stevens

Paul Rogers

Sydney Johnson

Peter Barkworth

Henderson

Fenella Fielding

Sheilah

Derek Francis

Frank

Gladys Henson

Mrs. Sarah Arscott - Constituent at Party Meeting

Conrad Phillips

Drake

Maureen Pryor

Labour Party Member

George Rose

Edward Collins

Peter Sallis

M.P.

Oliver Reed

Man with Bucket on His Head (uncredited)

John Arnatt

Gregson, BBC Reporter (uncredited)

Donald Churchill

Sheilah's Party Guest (uncredited)

Norman Rossington

Sykes of the Herald (uncredited)