Helen McCrory as Narrator (voice)

Richard J. Aldrich as Self - University of Warwick

Rory Cormac as Self - Associate Professor, Nottingham University

King George VI of the United Kingdom as Self (archive footage)

Neville Chamberlain as Self (archive footage)

Winston Churchill as Self (archive footage)

Caroline Erskine as Self - Daughter of Sir Alan Lascelles

Adolf Hitler as Self - Führer und Reichskanzler (archive footage)

Dwight D. Eisenhower as Self (archive footage)