Brad Pitt Jack Conrad Margot Robbie Nellie LaRoy Diego Calva Manny Torres Jean Smart Elinor St. John Flea Bob Levine Jovan Adepo Sidney Palmer J.C. Currais Truck Driver Jimmy Ortega Elephant Wrangler Hansford Prince Joe Holiday Telvin Griffin Reggie Olivia Wilde Ina Conrad Circus-Szalewski Driver (Wallach's Party) Lukas Haas George Munn Li Jun Li Lady Fay Zhu Kaia Gerber Starlet Patrick Fugit Officer Elwood Eric Roberts Robert Roy Cici Lau Gho Zhu Tyler Seiple Customer at Sam Wong's Rory Scovel The Count Olivia Hamilton Ruth Adler P.J. Byrne Max (Ruth's Assistant Director) Alexandre Chen Ruth's D.P. (James Wong Howe) Max Minghella Irving Thalberg Samara Weaving Constance Moore Jeff Garlin Don Wallach Sean O'Bryan Studio Executive (Billy) Katia Gomez Nurse at Sanatorium Katherine Waterston Estelle Jeremy Roberts Studio Employee (Sidney's House) Chloe Fineman Marion Davies Pat Skipper William Randolph Hearst Taylor Nichols Wealthy Man Kevin Symons Guest at Hearst Bungalow Pete Ploszek Young Actor (Jack's Beach Set) Ethan Suplee Wilson Phoebe Tonkin Jane Thornton Spike Jonze Otto (uncredited) Tobey Maguire James McKay Lewis Tan Smoking Man