Principal Cast
Keira Knightley
as Georgiana, The Duchess of Devonshire
Ralph Fiennes
as Duke of Devonshire
Aidan McArdle
as Richard Brinsley Sheridan
Simon McBurney
as Fox
Charlotte Rampling
as Lady Spencer
Dominic Cooper
as Grey
Hayley Atwell
as Bess
Bruce Mackinnon
as Sir Peter Teazle
Georgia King
as Lady Teazle
Alistair Petrie
as Heaton
Patrick Godfrey
as Dr. Neville
Richard McCabe
as Sir James Hare
Andrew Armour
as Burleigh