Alec Guinness

The D'Ascoyne Family: The Duke / The Banker / The Parson / The General / The Admiral / Young Ascoyne / Young Henry / Lady Agatha

Laurence Naismith

Warder in Jail (uncredited)

Hugh Griffith

Lord High Steward

Jeremy Spenser

Young Louis (uncredited)

Miles Malleson

The Hangman

Dennis Price

Louis Mazzini / His Father

Joan Greenwood

Sibella

Valerie Hobson

Edith D'Ascoyne

Audrey Fildes

Mama

Clive Morton

The Prison Governor

John Penrose

Lionel Holland

Cecil Ramage

Crown Counsel

John Salew

Mr. Perkins

Eric Messiter

Inspector Burgoyne

Lyn Evans

The Farmer

Barbara Leake

The Schoolmistress

Peggy Ann Clifford

Maud Redpole

Anne Valery

The Girl in the Punt

Arthur Lowe

The Reporter

Peter Gawthorne

First Lord Delivering Verdict (uncredited)

Molly Hamley-Clifford

Lady Redpole (uncredited)

Leslie Handford

Gamekeeper Hoskins (uncredited)

Cavan Malone

Young Graham (uncredited)

Carol White

Young Sibella (uncredited)

Robert Hamer

Director