Emmett Vogan
Lab Assistant (uncredited)
King George VI of the United Kingdom
Himself (archive footage)
John Nesbitt
Narrator (voice)
Theodore Roosevelt
Himself (archive footage)
Winston Churchill
Himself (archive footage)
William McKinley
Himself (archive footage)
Roger Moore
Man Examining Film Strip (uncredited)
Kaiser Wilhelm II of Germany
Himself (archive footage)
King George V of the United Kingdom
Himself (archive footage)
Archduke Franz Ferdinand
Himself (archive footage)
King Edward VIII of the United Kingdom
Himself (archive footage)
William Howard Taft
Himself (archive footage)
King Alfonso XIII of Spain
Himself (archive footage)