David Fincher Director, Producer Gary Oldman Herman J. Mankiewicz Actor Amanda Seyfried Marion Davies Actor Lily Collins Rita Alexander Actor Tom Burke Orson Welles Actor Tuppence Middleton Sara Mankiewicz Actor Charles Dance William Randolph Hearst Actor Tom Pelphrey Joseph Mankiewicz Actor Leven Rambin Eve Actor Keith Barber News Reel III Actor Arliss Howard Louis B. Mayer Actor Jack Fincher Screenwriter Ceán Chaffin Producer Eric Roth Producer Douglas Urbanski Producer Erik Messerschmidt Cinematographer Kirk Baxter Film Editing Trent Reznor Original Music Donald Graham Burt Production Design Chris Craine Art Director Jan Pascale Set Decoration Trish Summerville Costume Design Laray Mayfield Casting Atticus Ross Original Music