Nick Fury is a World War II American army hero and super spy. He is the director of S.H.I.E.L.D.; who serve as an intermediary between the government and various superheroes in the Marvel Universe.
Since his debut in the comics and other forms of media, Nick Fury was Caucasian.
In the Ultimate Marvel Universe of comics and more recent adaptions in other forms of media Nick Fury is portrayed as an African-American, with his look and personality tailored after actor Samuel L. Jackson which was done with his permission.