William Pitt / The Earl of Chatham
Robert Donat
Charles James Fox
Robert Morley
Richard Sheridan
Max Adrian
Sir Evan Nepean
A. Bromley Davenport
Smith
John Salew
Napoleon
Herbert Lom
Talleyrand
Albert Lieven
Lord Nelson
Stephen Haggard
Earl Spencer
Stuart Lindsell
Addington
Henry Hewitt
Sir Wm. Farquhar
Frederick Culley
Coachman
Frank Pettingell
Eleanor Eden
Phyllis Calvert
Gentleman Jackson
Leslie Bradley
Dan Mendoza
Roy Emerton
Mr. Melvill
Hugh McDermott
Lord Grenville
Alfred Sangster
Millicent Grey (uncredited)
Kathleen Byron
Danton (uncredited)
Leo Genn
William Wilberforce
John Mills
William Pitt, as a boy
Geoffrey Atkins
Mrs. Sparry
Jean Cadell
George the Third
Raymond Lovell
Queen Charlotte
Agnes Lauchlan
Lord North
Felix Aylmer
Dundas
Ian McLean
Director of Photography
Freddie Young
Director
Carol Reed
Screenplay
Sidney Gilliat
Costume Design
Cecil Beaton
Frank Launder
Producer
Edward Black
Maurice Ostrer
Music
Charles Williams
Editor
R. E. Dearing
Art Direction
Alex Vetchinsky
Elizabeth Haffenden
Hairstylist
Biddy Chrystal
Additional Dialogue
Viscount Castlerosse
Music Director
Louis Levy
Sound Director
B. C. Sewell