Serena Gordon

as Lady Caroline Lennox

Anne-Marie Duff

as Lady Louisa Lennox

Geraldine Somerville

as Lady Emily Lennox

Siân Phillips

as Narrator/Older Lady Emily Lennox

Jodhi May

as Lady Sarah Lennox

Alun Armstrong

as Lord Holland

Ben Daniels

as Lord Kildare

Julian Fellowes

as Duke of Richmond

Diane Fletcher

as Duchess of Richmond

Paul Ridley

as Thomas Conolly

Andrew Havill

as Sir Charles Bunbury

George Anton

as William Ogilvie

John Light

as Lord Edward FitzGerald

Clive Swift

as King George II

Richard Dempsey

as Lord Beaufield

Patrick Duncan

as First Guest

Gene Rooney

as Washer Woman 1