John Gielgud as Disraeli

Diana Wynyard as Mary Anne

Will Fyffe as The Agitator

Owen Nares as Lord Derby

Fay Compton as Queen Victoria

Pamela Standish as Princess Victoria

Stephen Murray as Mr. Gladstone

Frederick Leister as Lord Melbourne

Nicholas Hannen as Sir Robert Peel

Anthony Ireland as Count D'Orsay

Irene Browne as Lady Londonderry

Joss Ambler as Earl of Carnarvon (uncredited)

Hugh Bickett as (uncredited)

Vera Bogetti as Lady Blessington (uncredited)

Barbara Everest as Baroness Lehzen (uncredited)

Lyn Harding as Bismarck (uncredited)

Glynis Johns as Miss Sheridan (uncredited)

Margaret Johnston as Miss Sheridan (uncredited)

Nadine March as Mary Anne's maid (uncredited)

Gordon McLeod as John Brown (uncredited)

Leslie Perrins as Earl of Salisbury (uncredited)

Kynaston Reeves as Lord Stanley (uncredited)

Abraham Sofaer as Turkish ambassador (uncredited)

Andrea Troubridge as Miss Sheridan (uncredited)