Gary Oldman

Character: Herman Mankiewicz

Amanda Seyfried

Character: Marion Davies

Lily Collins

Character: Rita Alexander

Arliss Howard

Character: Louis B. Mayer

Tom Pelphrey

Character: Joseph Mankiewicz

Sam Troughton

Character: John Houseman

Ferdinand Kingsley

Character: Irving Thalberg

Tuppence Middleton

Character: Sara Mankiewicz

Tom Burke

Character: Orson Welles

Joseph Cross

Character: Charles Lederer

Jamie McShane

Character: Shelly Metcalf

Toby Leonard Moore

Character: David O. Selznick

Monika Gossmann

Character: Fräulein Frieda

Charles Dance

Character: William Randolph Hearst

Jack Romano

Character: Sid Perelman

Adam Shapiro

Character: George S. Kaufman

John Churchill

Character: Charles MacArthur

Jeff Harms

Character: Ben Hecht

Derek Petropolis

Character: Eddie Cantor

Sean Persaud

Character: Tommy

Paul Fox

Character: Joe Von Sternberg

Tom Simmons

Character: Doctor

Nick Job

Character: John Gilbert

Colin Ward

Character: Older Man

Cooper Tomlinson

Character: Younger Man

Julie Collis

Character: Female Starlet

Arlo Mertz

Character: Child Star

Craig Welzbacher

Character: Rexford Tugwell

Jessie Cohen

Character: Norma Shearer Thalberg

Desiree Louise

Character: Irene Selznick

Amie Farrell

Character: Mrs. Meyer

Ian Boyd

Character: Slim

Jay Villwock

Character: C.C.

Lou George

Character: Ed the Gate Guard

John Lee Ames

Character: Grady

Bill Nye

Character: Upton Sinclair

Richmond Arquette

Character: Heckler

David Lee Smith

Character: Sinclair Supporter

Mario Di Donato

Character: A Man's Voice (voice)

James Patrick Duffy

Character: Another Man

Flo Lawrence

Character: Maude Anderson

Sebastian Faure

Character: Movie Star #1

Randy Davison

Character: Maître D

Christian Prentice

Character: Emcee

Leven Rambin

Character: Eve - Shelly's Girlfriend

Rick Pasqualone

Character: Singer

Gary Teitelbaum

Character: Rabbi

Eden Wattez

Character: Joanna Mankiewicz - Age 2

Roslyn Cohn

Character: Elmma Wilson

Mark Fite

Character: James Wilson

John Patrick Jordan

Character: Best Original Screenplay Announcer

Ben Mankiewicz

Character: Broadcaster, Academy Awards

Natalie Denise Sperl

Character: Movie Star #2

Brian Michael Jones

Character: Aide - Ben

Camille Montgomery

Character: Starlet #1

Craig Robert Young

Character: Charlie Chaplin

Paul Carafotes

Character: Assistant Director

Anne Beyer

Character: Female Party Goer

Joey Hagler

Character: Male Party Goer

Sean Donnellan

Character: Martin Butler

Stewart Skelton

Character: News Reel I

Malachi Rivers

Character: News Reel II

Keith Barber

Character: News Reel III

Kaytlin Borgen

Character: Mayer's Assistant

Madison West

Character: Starlet #2

Elvy

Character: Starlet #3

Ali Axelrad

Character: Starlet #4

Adrienne Evans

Character: Wife #1

Wylie Small

Character: Wife #2

Dana Lyn Baron

Character: Wife #3

Jaclyn Bethany

Character: Typist (uncredited)

Cary Christopher

Character: Young Joseph Mankiewicz (uncredited)

Michelle Twarowska

Character: Joan Crawford (uncredited)

Kingston Vernes

Character: Young Herman Mankiewicz (uncredited)

Jordan Matlock

Character: Groundskeeper (uncredited)

Anthony Molinari

Character: Hobo (uncredited)

Daniel Hoffman

Character: MGM Child Star (uncredited)

Sebastian Twohey-Jacobs

Character: Beach Goer (uncredited)