Treason alert: this list intentionally omits some of history’s most infamous traitors, because a search for “history’s most infamous traitors” delivers page after page of pretty much the same list. Arnold’s price was 20,000 pounds and a British military post. 6 Alfred Redl: A Very Compromising PositionOberst Redl [Colonel Redl] (1985) Trailer – István SzabóAlfred Redl was the chief counterintelligence officer in the Austro-Hungarian Army from 1900-12. 5 Patrick Heenan: Code-bloodedDespite being among history’s most black-and-white, good vs. evil struggles, World War II had its share of Allied traitors. 3 Lee Harvey Oswald: Traitor Turned TriggermanThe only reason Lee Harvey Oswald isn’t more associated with treason is his culpability in a far more serious crime.
