Damon Gupton
Jean Smart as Elinor St. John
Taylor Nichols as Wealthy man
Tobey Maguire as James McKay
Sean O'Bryan as Studio Executive (Billy)
J.P. Manoux as Otto's Camera Assist (uncredited)
Todd Giebenhain as Prop Master (Kinoscope)
Frederick Koehler as D.P. Bill (1st Day of Sound)
P.J. Byrne as Max (Ruth's Assistant Director)
Lukas Haas as George Munn
Olivia Wilde as Ina Conrad
David Ury as Fan (Autograph)
Katherine Waterston as Estelle
Jimmy Ortega as Elephant Wrangler
Richard Clarke Larsen as A.C. (Camera Rental House)
E.E. Bell as Wilbur
Cici Lau as Gho Zhu
Eamon Hunt as Man Shouting in Bad Irish Accent
Hansford Prince as Joe Holiday
Max Minghella as Irving Thalberg
Pat Skipper as William Randolph Hearst
Robert Beitzel as Lewis the Director
Bob Clendenin as Otto's Assistant Director
James Wellington as Extra
Joe Dallesandro as Charlie / Photographer (Wallach's Party)
Spike Jonze as Otto
Heather McPhaul as 1950s Moviegoer (uncredited)
John Kerry as Jonathan Rothschild
Jennifer Grant as Mildred Yates
Kevin Symons as Guest at Hearst Bungalow
Sarah Ramos as Harriet Rothschild
Bryan Scott Johnson as Wealthy man
Chris Doubek as Guest at Hearst Bungalow
Lewis Tan
Marcos A. Ferraez as Police Officer (as Marcos Ferraez)
Trisha Simmons as Woman at door
Alex Reznik as Kinoscope Exec
Johnny Hoops as Extra
Bourke Floyd as Kinoscope Crew (uncredited)
John Mariano as Master of Ceremonies
Terry Walters as Editor (Kinoscope)

Shane Powers as Dale
Anna Chazelle as Bobbie Hart (uncredited)
Katia Gomez as Nurse at Sanitorium
Phoebe Tonkin as Jane Thornton
Miraj Grbic as Extra
Karen Steele as Silvia Torres
Troy Metcalf as Orville Pickwick
Robert Morgan as Director (Wallach's Party)
Margot Robbie as Nellie LaRoy
Turtle as Employee (Camera Rental House)
Christian Calloway as Homeless Man (uncredited)
Martyn Hale as Soldier (uncredited)
Circus-Szalewski as Driver (Wallach's Party)
Andrew Hawtrey as Kinoscope Assistant Director
Li Jun Li as Lady Fay Zhu
Nana Agyapong as Woman in Ostrich Feather Hat
Bobby C. King as Otto's AD
Jonathan Thomson as Guest at Hearst Bungalow
Armando Cosio as Grip Harry (1st Day of Sound)
Josh Harp as Elephant Man
Mike C. Manning as New York Fan
Melissa Cordero as Starlet (uncredited)
Carlena Britch as Party Goer (uncredited)
Tyler Seiple as Customer at Sam Wong's
Jaden Alexander as Secretary (uncredited)
Alex Dobrenko as Assistant to Don Wallach (uncredited)
Pete Ploszek as Young Actor (Jack's Beach Set)
Ana Coto as Dancer (uncredited)
Vanessa Bednar as Nellie's Mother
Yissendy Trinidad as Carmelita
Samara Weaving as Constance Moore
William Nicol as Cameraman (uncredited)
Taylor Marie Hill as Rebecca
Kenajuan Bentley as Conductor (Night Club)
Phillip E. Walker as Party Attendee
Jovan Adepo as Sidney Palmer
Sole Bovelli as Beauty
Hal Dion as Elevator Operator (uncredited)
Rory Scovel as The Count
Albert Hammond Jr. as Guest (Chicken Line)
Jenna Enns as Guest (uncredited)