Al Capone was the only real-life figure to appear in "The Adventures of Tintin", and in the original version, Hergé chose to hide his face behind a scarf.
Al Capone was one of only two real-life individuals to be named in "The Adventures of Tintin", and was the only real-life figure to actually appear in series. In the original version, Hergé chose to hide his face behind a scarf.