Jonathan Cake

as Oswald 'Tom' Mosley

Jemma Redgrave

as Cimmie Curzon

Hugh Bonneville

as Bob Boothby

Flora Montgomery

as Baba

Ralph Riach

as Ramsey MacDonald

Windsor Davies

as David Lloyd George

Gresby Nash

as Fruity Metcalfe

Emma Davies

as Diana Mitford Guinness

Roger May

as Jonathan Strachey

Paul Ireland

as Allan Young

Orlando Wells

as Cecil Beaton

Ken Jones

as JH Thomas

Eric Allan

as Philip Snowden

Berwick Kaler

as Arthur Henderson

Arturo Venegas

as Count Grandi

Debora Weston

as Maxine Elliott

Philip Dunbar

as Philip Sassoon

Robert Langdon Lloyd

as Lord Curzon

Devon Scott

as Lady Grace Curzon

Hugh Simon

as Winston Churchill

Richenda Carey

as Lady Mosley

Dermot Martin

as Sgt O'Sullivan

Caroline Langrishe

as Jane Bewley

Jeremy Child

as Major Bewley

Roger Brierley

as Neville Chamberlain

Edward Highmore

as Derek Johnson

Jonathan Coy

as Harold Nicholson

Ben Pullen

as Peter Howard

Sonya Walger

as Barbara Hutchinson

David Henry

as William Morris

Stephen Gressieux

as Benito Mussolini

Nigel Davenport

as Lord Rothermere

Colum Convey

as William Joyce

Mike Burnside

as Neil Francis Hawkins

Brigitte Kahn

as Margherita Sarfatti

Anouschka Menzies

as Unity Mitford

Stephan Grothgar

as Putzi Hansfstaengl

John Straiton

as James Maxton

Reinhard Michaels

as Adolf Hitler

Erich Redman

as Joseph Goebbels

William Boscaven

as Nicholas Mosley

Karl Draper

as Makin

Alan Ford

as Gaolor