The Prime Minister

John Gielgud

Disraeli

Diana Wynyard

Mary Anne

Will Fyffe

The Agitator

Owen Nares

Lord Derby

Fay Compton

Queen Victoria

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Pamela Standish

Princess Victoria

Stephen Murray

Mr. Gladstone

Frederick Leister

Lord Melbourne

Nicholas Hannen

Sir Robert Peel

Anthony Ireland

Count D'Orsay

Irene Browne

Lady Londonderry

Joss Ambler

Earl of Carnarvon (uncredited)

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Hugh Bickett

(uncredited)

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Vera Bogetti

Lady Blessington (uncredited)

Barbara Everest

Baroness Lehzen (uncredited)

Lyn Harding

Bismarck (uncredited)

Glynis Johns

Miss Sheridan (uncredited)

Margaret Johnston

Miss Sheridan (uncredited)

Nadine March

Mary Anne's maid (uncredited)

Gordon McLeod

John Brown (uncredited)

Leslie Perrins

Earl of Salisbury (uncredited)

Kynaston Reeves

Lord Stanley (uncredited)

Abraham Sofaer

Turkish ambassador (uncredited)

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Andrea Troubridge

Miss Sheridan (uncredited)