- Jeremy Jordan - Jimmy Collins
- Krysta Rodriguez - Ana Vargas
- Brian d'Arcy James - Frank Houston
- Andy Mientus - Kyle Bishop
- Jesse L. Martin - Scott Nichols
- Jennifer Hudson - Veronica Moore
- Robert LuPone - Jerry's Attorney
- Kate Clinton - Director
- David Fonteno - Deputy Mayor Klein
- Lucy Walters - Suzanne
- Bruce Meakem - Brian
- Maddie Corman - Rene Walters
- Doreen Montalvo - Debbie
- Steve Park - Reporter #1
- Jeffrey C. Hawkins - Reporter #2
- Tom Kitt - Musician
- Becky Ann Baker - Mrs. Cartwright
- Jenni Barber - Marlena
- Rebecca Naomi Jones - Laura
- Nadia Quinn - Amy
- Li Jun Li - Store Clerk
- Finnerty Steeves - Moira
- Eisa Davis - Abigail
- Rachael Ma - Caris
- Daniel Raymont - Sebastian
- Nitya Vidyasagar - Jill Abrams
- Oberon K.A. Adjepong - Town Car Driver
- Maggie Bofill - Officer Hernandez
- Mat Hostetler - Best Boy
- Glenn Kalison - Arthur Miller
- Geoffrey Cantor - Barry Schwartzman
- Hale Appleman - Zach
- Fred Berman - Keith
- William Connell - Aaron
- Barzin Akhavan - Plumber
- Lewis J. Stadlen - Ralph Masius
- Dave Bradford - Engineer
- Ryan Tedder - Ryan Tedder
- Michelle Federer - Monica Swift
- Norbert Leo Butz - Norbert Leo Butz
- T.J. Kenneally - McMannus
- David Lipman - Judge Davenport
- Doug Hughes - Doug Hughes
- Zach Shaffer - Andrew
- Andrea Bordeaux - Casting Assistant
- Jennifer Ikeda - Lianne
- Scott Burkhardt - Scott
- Mary Joy - Stage Manager
- Mark Junek - Gary Knowles
- Tom Nelis - Jimmy
- Samantha Soule - Donna
- Jamie Jackson - Keyboard Player
- Libby Winters - Guitar Player
- James Monroe Iglehart - Assistant
- Borris York - Assistant
- Neal Bledsoe - John Goodwin
- Terrence Mann - Randy Cobra
- Emanuel Azenberg - Emanuel Azenberg
- Larry Block - Gary Garrison
- Harrison Chad - August
- Steven Kaplan - Alan Rykoff
- Betsy Aidem - Guidance Counselor
- Charlie Semine - Paul Denby
- Peter Rini - Petey
- Marcus Schenkenberg - Colin
- John Procaccino - Cooper
- Russell Jones - Officer Waters
- Daniel Mills - Paulie
- Rommy Sandhu - Waiter
- Marsha Waterbury - Nina
- Welker White - Betsy Fields
- Erin Wyatt - Lindsey Mullens
- Tala Ashe - R.J. Quigley
- Marcos Gonzalez Palma - Simon
- Ty Jones - Paul Strickland
- Amina Robinson - Tia
- Tony Yazbeck - Ted
- Uma Thurman - Rebecca Duvall
- Marc Kudisch - Darryl F. Zanuck
- Isiah Whitlock Jr. - Ronald Strickland
- Sean Dugan - Randall Jones
- Hinton Battle - Pastor
- Elain R. Graham - Vanessa Strickland
- Phillip Spaeth - Dennis
- Nick Jonas - Lyle West
- Jolly Abraham - Casting Director
- Brenda Braxton - Beautiful Mother
- Harvey Fierstein - Harvey Fierstein
- Margo Martindale - Miriam Abramson
- Annaleigh Ashford - Lisa McMann
- Brynn O'Malley - Derek's Agent
- Sylvia Kauders - Old Jewish Lady
- Erik Heger - Boyfriend
- Terra Mackintosh - Beautiful Woman
- Matt Bogart - Matt
- Bernard Telsey - Bernard Telsey
- Tom Galantich - Henry
- Sheryl Lee Ralph - Cynthia Moore
- Ann Harada - Linda
- Michaela Waters - Gretchen
- Alice Kremelberg - Actor #1
- Brandon Tyler Harris - Actor #2
- Phil McGlaston - Lawyer
- Jon Robin Baitz - Jon Robin Baitz
- Ching Valdes-Aran - Liz
- Kim Rosen - Jen
- Jordan Roth - Jordan Roth
- Marty Lawson - Marty
- Nikki Blonsky - Margo
- Daniel Sunjata - Peter Gilman
- Marc Shaiman - Pianist
- Marc Shaiman - Marc Shaiman
- Dola Rashad - Cynthia Moran
- AJ Cedeno - Reporter
- Julian Ovenden - Simon
- Julian Ovenden - John F. Kennedy
- Jake Robinson - Drummer
- Jason Kravits - Timothy
- Tim Wright - Dave
- Tim Wright - Today Show AD
- Seth Rudetsky - Seth Rudetsky
- Veanne Cox - Actress
- Grace Gummer - Katie Rand
- Kathy Fitzgerald - Actor #3
- Sean Hayes - Terry Falls
- Bo Stansell - Usher
- Bobby Lamont - Actor #4
- Natalie Paul - Actor #5
- Frankie J. Alvarez - Actor #6
- Kelly McAndrew - Actor #1
- Christy Pusz - Actor #2
- Rachel Oyama - Mia
- Dylan Baker - Roger Cartwright
- Cole Escola - Coat Check Clerk
- Liza Minnelli - Liza Minnelli
- Ramón Olmos Torres - Flower Delivery Guy
- Isis King - Waitress
- Jenny Laroche - Sue
- Shaun Licata - Cathie
- Shaun Licata - Josie
- Jamey Sheridan - Richard Francis
- Jamey May - Richard Francis
- Emory Cohen - Leo Houston
- Stephen Bogardus - Jeff Preston
- Edward Hibbert - Critical Previewer
- Donna McKechnie - Female Previewer
- Scott Wittman - Scott Wittman
- Fred Rose - Drag Musician Saxophone
- Henry Stram - Justin
- Raymond J. Lee - Jon
- Kathie Lee Gifford - Kathie Lee Gifford
- David Call - Adam
- Anthony Arkin - Mr. Bishop
- Carolee Carmello - Marie Bishop
- Frank De Julio - Patrick
- Jason Ralph - Fan
- Kevin McCollum - Kevin McCollum
- Charlie Moss - Gentleman
- Daniel Abeles - Blake
- Sophia Anne Caruso - Little Girl
- Frank DiLella - Frank DiLella
- Lin-Manuel Miranda - Lin-Manuel Miranda
- Lindsay Mendez - Lindsay Mendez
- Daniel Hartley - Ross
- Armand Anthony - Commercial Director
- Manuel Herrera - Ed
- Mary Testa - Hostess
- Cheyenne Jackson - Cheyenne Jackson
- Christine Ebersole - Christine Ebersole
- Michael Riedel - Michael Riedel
- Michael Musto - Michael Musto
- Mike DiSalvo - Theatergoer
- Christine Toy Johnson - Dr. Holland
- Dee Hoty - Director
- Happy Anderson - Doorman
- Alice Lee - Bombshell Fan #1
- Drew Gehling - Bartender
- Bryan Langlitz - Correctional Officer
- Ron Rifkin - Ron Rifkin
- Bernadette Peters - Leigh Conroy
- Thorsten Kaye - Nick Felder
- Michael Cristofer - Jerry Rand
- Lillias White - Lillias White
- Rosie O'Donnell - Rosie O'Donnell
- Daphne Rubin-Vega - Agnes
- Mara Davi - Daisy Parker
- Luke Macfarlane - Patrick Dillon
- Marin Mazzie - Marin Mazzie
- Will Chase - Michael Swift
- Wesley Taylor - Bobby
- Phillipa Soo - Lexi
- Teddy Cañez - Landlord
- Sekou Laidlow - Production Assistant
- Kevin Isola - Cameraman
- Susan Blackwell - Stella Stewart
- Montego Glover - Marissa
- Ade Chike Torbert - Dancer
- Nicole Orth-Pallavicini - Woman
- Jason Michael Miller - Michael Swift Fan (uncredited)
- Chris Jehnert - Bombshell Fan (uncredited)
- Tanya Wheelock - Passerby (uncredited)
- Garson Kanin
- Alex Shevchenko
- Kenneth Ferrone
- Jordon Nardino
- Darryl Frank
- Dana J. Kuznetzkoff
- Steven Spielberg
Uma Thurman hace el papel de Rebecca Duvall.
Jamey Sheridan hace el papel de Richard Francis.
Christine Ebersole hace el papel de Christine Ebersole.
Steve Park interpreta a Reporter #1 en la serie.
Margo Martindale interpreta a Miriam Abramson en la serie.
Jack Davenport interpreta a Derek Wills en la serie.
Megan Hilty interpreta a Ivy Lynn en la serie.
Katharine McPhee interpreta a Karen Cartwright en la serie.
Christian Borle interpreta a Tom Levitt en la serie.
Debra Messing interpreta a Julia Houston en la serie.
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