Brad Pitt Jack Conrad
Samara Weaving Constance Moore
Margot Robbie Nellie LaRoy
Olivia Wilde Ina Conrad
Tobey Maguire James McKay, Executive Producer
Jean Smart Elinor St. John
Eric Roberts Robert Roy
Max Minghella Irving Thalberg
Lukas Haas George Munn
Katherine Waterston Estelle
Diego Calva Manny Torres
Damien Chazelle Writer, Director
Chris Reid Stunts, Stunt Double
Patrick Fugit Officer Elwood
P.J. Byrne Max (Ruth's Assistant Director)
Phoebe Tonkin Jane Thornton
Li Jun Li Lady Fay Zhu, Songs
Jeff Garlin Don Wallach
Kaia Gerber Starlet
Spike Jonze Otto (uncredited)
Frederick Koehler D.P. Bill (1st Day of Sound)
Lewis Tan Smoking Man (uncredited)
Sean O'Bryan Studio Executive (Billy)
Jennifer Grant Mildred Yates
Sarah Ramos Harriet Rothschild
Flea Bob Levine
John Mariano Master of Ceremonies
Todd Giebenhain Prop Master (Kinoscope)
Chloe Fineman Marion Davies
Ethan Suplee Wilson
Bob Clendenin Otto's Assistant Director
Taylor Nichols Wealthy Man
Lauren Mary Kim Stunts
Rory Scovel The Count
Jovan Adepo Sidney Palmer
Pete Ploszek Young Actor (Jack's Beach Set)
David Ury Fan (Autograph)
Francine Maisler Casting
Mather Zickel Distribution Executive
Taylor Hill Rebecca
Andy Nelson Sound Re-Recording Mixer
Robert Morgan Director (Wallach's Party)
Wyck Godfrey Executive Producer
Joe Dallesandro Charlie / Photographer (Wallach's Party)
Marc Platt Producer
J.C. Currais Truck Driver
Pat Skipper William Randolph Hearst
Olivia Hamilton Producer, Ruth Adler
Ingrid Kleinig Stunt Double
Timothy Eulich Stunt Coordinator, Fight Choreographer
Chris Silcox Stunts
Danny Downey Stunts
Justin Hurwitz Original Music Composer
James Wellington Extra
Walker Hare McKay's Associate
John Kerry Jonathan Rothschild
Mike Manning New York Fan (uncredited)
Terry Walters Editor (Kinoscope)
Lee Gilmore Sound Effects Editor
Karolina Szymczak Olga Putti
Dan O'Connell Foley Artist
Ric Sarabia Crew Member (1st Day of Sound)
Donny Bailey Stunt Driver
Doug Coleman Stunt Coordinator
Jason Cloth Executive Producer
Cici Lau Gho Zhu
Mandy Moore Choreographer
Jimmy Ortega Elephant Wrangler
Joey de Leon Percussion
Mary Zophres Costume Design
Hayley Huntley Liz (Pool Party)
Jeremy Roberts Studio Employee (Sidney's House)