Gerrard McArthur

Narrator

Raye Farr

Self - Archive Director - Holocaust Museum Washington

W. David Lewis

Self - Author - 'The Man Who Invented Hitler'

Epping Jaeger

Self - Vocal Expert

Richard John Evans

Self - Professor of Modern History - Cambridge University

Timothy Ryback

Self - Harvard University

Peter York

Self - Author - Dictators' Homes

Michael Brooke

Self - Speech Recognition Expert

Frank Hubner

Self - Speech Recognition Expert

Adolf Hitler

Self (archive footage)