William Pitt / The Earl of Chatham

Robert Donat

Charles James Fox

Robert Morley

Eleanor Eden

Phyllis Calvert

William Wilberforce

John Mills

William Pitt, as a boy

Geoffrey Atkins

George the Third

Raymond Lovell

Mrs. Sparry

Jean Cadell

Richard Brinsley Sheridan

Max Adrian

Lord North

Felix Aylmer

Queen Charlotte

Agnes Lauchlan

Talleyrand

Albert Lieven

Lord Horatio Nelson

Stephen Haggard

Dundas

Ian McLean

Queen Charlotte

Agnes Laughlan

Sir Evan Nepean

A. Bromley Davenport

Smith

John Salew

Coachman

Frank Pettingell

Napoleon

Herbert Lom

Gentleman Jackson

Leslie Bradley

Dan Mendoza

Roy Emerton

Mr. Melvill

Hugh McDermott

Earl Spencer

Stuart Lindsell

Henry Addington

Henry Hewitt

Sir William Farquhar

Frederick Culley

Henry Dundas

Ian MacLean

Lord Grenville

Alfred Sangster

Millicent Grey (uncredited)

Kathleen Byron

French Registrar

Austin Trevor

Danton (uncredited)

Leo Genn

Atkinson

Jack Watling

Naval Officer

Hugh Ardale

Neal Arden

Man in Stocks

Ronald Shiner

Minor Role

John Slater

Johnny Brandon

Servant at Lord Auckland's

Leslie Dwyer

Servant at Lord Auckland's

Esma Cannon

Naval Officer

Hugh Ardele

Lord Auckland

Frederick Leister

Philip Friend

Admiral

Peter Gawthorne

Maid at Lord Auckland's

Merle Tottenham

Somerset

Aubrey Mallalieu

Mrs. Carr

Muriel George

Alf Goddard

Duchess of Devonshire

Margaret Vyner

Morland Graham

Bellamy

James Harcourt

Billy Holland

Dalla Black

W.E. Holloway

Louis Diswarte

Mayor

David Horne

Minor Role

Kynaston Reeves

Gordon James

James Kenney

Minor Role

Johnnie Schofield

Minor Role

Ann Stephens

Bruce Winston

Owen Reynolds

George Selwyn

Gibb McLaughlin

Gerald Cooper

Lady in Waiting

Gertrude Maesmore Morris

Ralph Roberts

Charles Paton

Edgar Vosper

Lloyd Pearson

Edmund Willard

Esme Percy

Frederick Valk

J.H. Roberts

D.J. Williams

Boy

Grant Tyler

Stanley Escane

Leslie Harcourt

Sydney Tafler

John H. Roberts

Townsend Whitling

Gentleman Jackson

Leslie E. Bradley