"Belgravia, 1871. When Lord Frederick Trenchard meets Clara Dunn, their courtship is full of passion. But after they marry, the scandalous world of high society and a long-buried family secret threaten to unravel their happiness."
Harriet Slater
as Clara Trenchard
Benjamin Wainwright
as Frederick Trenchard
Edward Bluemel
as Doctor Stephen Ellerby
Elaine Cassidy
as Davison
Claude Perron
as Marquise d'Etagnac
Sophie Thompson
as Mrs Dunn
David Fynn
as Ross
Liam Garrigan
as Fletcher
Gerard Horan
as Enright
Miles Jupp
as Duke of Rochester
Lauren McQueen
as Nell
Hannah Onslow
as Emily Dunn
Toby Regbo
as Reverend James Trenchard
Sophie Winkleman
as Duchess of Rochester
Joanna Strevens
Executive Producer
Gareth Neame
Nigel Marchant
Julian Fellowes
Helen Edmundson
Colin Wratten
Producer
John Lunn
Music