David Fincher Director Brad Pitt Detective David Mills Actor Morgan Freeman Detective Lt. William Somerset Actor Gwyneth Paltrow Tracy Mills Actor R. Lee Ermey Police Captain Actor Richard Roundtree Dist. Atty. Martin Talbot Actor John C. McGinley California Actor Julie Araskog Mrs. Gould Actor Mark Boone Junior Greasy FBI Man Actor John Cassini Officer Davis Actor Reg E. Cathey Coroner Actor Peter Crombie Dr. O'Neill Actor Kevin Spacey John Doe Actor Hawthorne James George Actor Michael Massee Man in Massage Parlour Booth Actor Leland Orser Crazed Man in Massage Parlour Actor Richard Portnow Dr. Beardsley Actor Richard Schiff Mark Swarr Actor Pamala Tyson Homeless Woman Actor Andrew Kevin Walker Writer Dan Kolsrud Executive Producer Anne Kopelson Executive Producer Gianni Nunnari Executive Producer Arnold Kopelson Producer Phyllis Carlyle Producer Harris Savides Cinematographer Darius Khondji Cinematographer Richard Francis-Bruce Film Editing David Bowie Original Music Brian Eno Original Music Howard Shore Original Music Trent Reznor Original Music Arthur Max Production Design Gary Wissner Art Director Clay A. Griffith Set Decoration Michael Kaplan Costume Design Kerry Barden Casting Billy Hopkins Casting Suzanne Smith Casting