The Prime Minister

Frederick Leister

Lord Melbourne

Nicholas Hannen

Sir Robert Peel

Anthony Ireland

Count D'Orsay

Irene Browne

Lady Londonderry

Joss Ambler

Earl of Carnarvon (uncredited)

Hugh Bickett

(uncredited)

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)