That was over 21 years ago in 2000.
Today he is 65, and has starred in 121 movies in total, 78 since American Psycho was released.
In American Psycho, I think Willem Dafoe looks:
American Psycho scores 7.3 out of 10 on The Movie Database.
Willem Dafoe's first acting role was as 'Willy (uncredited)' in Heaven's Gate, released in 1980 when he was 25.