Christian McKay

as Roger Penrose

as Lord Hesketh

as Mackelvore

as Earl Wilson

as Banker in Boston

as Roger Leonides

as Poker Friend

as Samuel Blake

as Jefferson Cope

as Giles Newcombe

as Will Spencer

as Father James Coffin

as Inigo Upcott

as Orson Welles

as John Watson

as Hamilton McMillan

as Cleopas

as Cardinal Sforza

as Nicky Gordon-Lennox

as John's Dad

as Tim

as Iorgu Ristea

as Maxwell Utterson

as Winston Churchill

as Christopher Soames

as David Rose

as Carsten

as Harry Elton

as Hugo March

as John Whittingdale

as Franklin D. Roosevelt

as Grant Pierce

as Robert

as John

as Estienne Roger

as The Museum Guard

as Pierre Monteux

as Richard

as John

as George Kirbye

as Nigel

as Father