The Narrator is a fictional character and the protagonist and main antagonist of the 1996 Chuck Palahniuk novel Fight Club, its 1999 film adaptation of the same name, and the comic book sequels Fight Club 2 and Fight Club 3. From Wikipedia
Despite Disavowing Far Right Adoration of 'Fight Club', Director David Fincher Has No Explanation for Its Misinterpretation and Fringe Base Endorsement