Albert Finney

Character: Winston Churchill

Vanessa Redgrave

Character: Clemmie Churchill

Jim Broadbent

Character: Desmond Morton

Linus Roache

Character: Ralph Wigram

Lena Headey

Character: Ava Wigram

Tom Wilkinson

Character: Sir Robert Vansittart

Derek Jacobi

Character: Stanley Baldwin

Celia Imrie

Character: Violet Pearman

Hugh Bonneville

Character: Ivo Pettifer

Tom Hiddleston

Character: Randolph Churchill

Ronnie Barker

Character: David Inches

Gottfried John

Character: Friedrich von Schroder

Anthony Brophy

Character: Brendan Bracken

Edward Hardwicke

Character: Mr. Wood

Tim Bentinck

Character: Marlborough

Dolly Wells

Character: Sarah Churchill

Lyndsey Marshal

Character: Peggy

Walter Sittler

Character: German Diplomat

John Standing

Character: Lord Moyne

Simon Williams

Character: Terence Philip

Joanna McCallum

Character: Marjorie

Philip Harvey

Character: Club Doorman