 | Carey Mulligan als Felicia Montealegre |
 | Bradley Cooper als Leonard Bernstein |
 | Matt Bomer als David Oppenheim |
 | Vincenzo Amato als Bruno Zirato |
 | Greg Hildreth als Isaac |
 | Michael Urie als Jerry Robbins |
 | Brian Klugman als Aaron Copeland |
 | Nick Blaemire als Adolph Green |
 | Mallory Portnoy als Betty Comden |
 | Alexandra Santini als Claudio's Guest #1 |
| Jarrod LaBine als Claudio's Guest #2 |
 | Sarah Silverman als Shirley Bernstein |
 | Kate Eastman als Ellen Adler |
 | William Hill als Joseph the Janitor |
 | Valéry Lessard als Younger Actress |
| Renée Stork als Older Actress |
 | Tim Rogan als Richard Hart |
 | Sara Sanderson als Lil Hart |
 | Yasen Peyankov als Serge Koussevitzky |
| Julia Aku als Olga |
| Benjamin Freemantle als Sailor |
 | Harrison Coll als Sailor |
| Sebastian Villarini-Velez als Sailor |
| Dario Natarelli als Sailor |
 | Ryan Steele als Sailor |
 | Ricky Ubeda als Sailor |
| Carlos Sánchez Falú als Bartender |
| Jeanette Delgado als Fancy Free Woman |
| Sara Esty als Fancy Free Woman |
| Ahmad Simmons als NYC Pedestrian Man Dancer |
 | Kyle Coffman als NYC Pedestrian Man Dancer |
| Byron Tittle als NYC Pedestrian Man Dancer |
| Yesenia Ayala als NYC Pedestrian Woman Dancer |
| Skye Mattox als NYC Pedestrian Woman Dancer |
| Halli Toland als NYC Pedestrian Woman Dancer |
| Leigh-Ann Esty als NYC Pedestrian Woman Dancer |
 | Gaby Diaz als NYC Pedestrian Woman Dancer |
 | Tanairi Sade Vazquez als NYC Pedestrian Woman Dancer |
| Lea Cooper als Little Jamie |
 | Soledad Campos als Julia Vega |
 | Zachary Booth als Mendy Wager |
 | Miriam Shor als Cynthia O'Neal |
 | Maya Hawke als Jamie Bernstein |
| Scott Ellis als Harry Kraut |
 | James Cusati-Moyer als Georgie |
| John Kroft als Young Man |
| Scott Drummond als Scott |
 | Gideon Glick als Tommy Cothran |
 | Josh Hamilton als John Gruen |
 | June Gable als Old Lady |
 | Sam Nivola als Alexander Bernstein |
 | Alexa Swinton als Nina Bernstein |
| Mike Mitarotondo als Bellhop |
| Colin Anderson als Stage Manager |
| Kevin Thompson als Director |
 | Rosa Feola als Ely Soloist #1 |
 | Isabel Leonard als Ely Soloist #2 |
| Miller Bugliari als Miller |
| Atika Greene als Nurse |
| Bernard Kruger als Dr. Kruger |
 | Gabe Fazio als Willard the Assistant |
| Jordan Dobson als William |
 | Oscar Pavlo als Claudio Arrau (uncredited) |
 | Eric Patrick Cameron als Audience Member (uncredited) |
| Bradley Cooper | Director |
| Bradley Cooper | Producer |
| Martin Scorsese | Producer |
| Kristie Macosko Krieger | Producer |
| Fred Berner | Producer |
| Steven Spielberg | Producer |
| Chris Moraitis | Researcher |
| Amy Durning | Producer |
| Michelle Tesoro | Editor |
| Shayna Markowitz | Casting |
| Kevin Thompson | Production Design |
| Rena DeAngelo | Set Decoration |
| Mark Bridges | Costume Design |
| Kazu Hiro | Prosthetic Designer |
| Toni Roman-Grimm | Hairstylist |
| Kay Georgiou | Hair Department Head |
| Sian Grigg | Makeup Designer |
| Lori McCoy-Bell | Hairstylist |
| Matthew Libatique | Director of Photography |
| Deborah Jensen | Supervising Art Director |
| Mary Chipman | Makeup Artist |
| Jameson Eaton | Key Hair Stylist |
| Matthew Green | Hairstylist |
| Chad Harlow | Hairstylist |
| Duncan Jarman | Prosthetic Makeup Artist |
| Chris Lyons | Special Effects Makeup Artist |
| Claire Mahony | Hairstylist |
| Madison McLain | Makeup Artist |
| Jackie Risotto | Makeup Department Head |
| Bri Trischitta | Makeup Artist |
| Michele Ziegler | First Assistant Director |
| Xanthus Valan | Second Assistant Director |
| Leah Sargent | Visual Effects |
| Mark Graham | Music Coordinator |
| Christine Bergren | Music Arranger |
| Alexandra Torterotot | Script Supervisor |
| Scott Burik | Stunt Coordinator |
| Shane Geraghty | Stunts |
| Samantha MacIvor | Stunts |
| Christopher Place | Stunts |
| Jen Egan | Stunts |
| Kate Edwards | Costume Supervisor |
| Gali Noy | Assistant Costume Designer |
| Kevin Ritter | Costume Supervisor |
| David Hallas | Lighting Technician |
| Gus Margiotta | Grip |
| Tim Metivier | First Assistant "B" Camera |
| Peter Schall | Rigging Gaffer |
| Nancy Valle | Post Production Consulting |
| Stefan Sonnenfeld | Colorist |
| Jeanne Gilliland | Boom Operator |
| Ryan Heck | Art Direction |
| Ellie Jones | Standby Art Director |
| Kat St. John | Set Costumer |
| Vern Malone | Set Costumer |
| Randy Torres | Sound Effects Editor |
| Deborah Wheatley | Assistant Art Director |
| Joe Taglairino | Set Dresser |
| Shane Claire Strano | Set Dresser |
| Candis Heiland | Set Dresser |
| Roman Greller | Set Dresser |
| Dan Decelle | Set Dresser |
| Brandon Boyles | Set Dresser |
| Jurasama Arunchai | Assistant Art Director |
| Weston Middleton | Executive Producer |
| Carla Raij | Executive Producer |
| Josh Singer | Writer |
| Bradley Cooper | Writer |
| Leonard Bernstein | Original Music Composer |
| Josh Singer | Executive Producer |
| Bobby Wilhelm | Executive Producer |
| Tracey Landon | Executive Producer |
| Kelley Cribben | Post Production Supervisor |
| Steven Gizicki | Music Supervisor |
| Leah Winkler | Unit Production Manager |
| Tracey Landon | Unit Production Manager |
| Jeremy Marks | First Assistant Director |
| Carla Raij | Unit Production Manager |
| Ryan Robert Howard | Second Assistant Director |
| Emma Elgort | Associate Producer |
| P. Scott Sakamoto | "A" Camera Operator |
| Colin Anderson | "B" Camera Operator |
| P. Scott Sakamoto | Steadicam Operator |
| Colin Anderson | Steadicam Operator |
| Aurelia Winborn | First Assistant "A" Camera |
| Steven Morrow | Production Sound Mixer |
| Brett Martinez | Assistant Art Director |
| Diana Choi | Wigmaker |
| Tim Monich | Dialect Coach |
| Jason McDonald | Still Photographer |
| Mitch Deltuvia | Second Second Assistant Director |
| Victoria Ruggiero | Music Editor |
| Jason Ruder | Supervising Music Editor |
| Charlie Greene | First Assistant Editor |
| JiYe Kim | Assistant Editor |
| Richard King | Sound Designer |
| Richard King | Supervising Sound Editor |
| Rich Bologna | Supervising Sound Editor |
| Tony Martinez | Supervising Dialogue Editor |
| Tony Martinez | Supervising ADR Editor |
| Eliza Paley | Dialogue Editor |
| Jac Rubenstein | Dialogue Editor |
| Fred Rosenberg | Dialogue Editor |
| Paul Berolzheimer | Sound Effects Editor |
| Michael W. Mitchell | Sound Effects Editor |
| Andrew Bock | First Assistant Sound Editor |
| Eric McAllister | First Assistant Sound Editor |
| Mike Horton | Foley Artist |
| Dann Fink | ADR Voice Casting |
| Bruce Winant | ADR Voice Casting |
| John Bair | Visual Effects Supervisor |
| Jason Ruder | Executive Music Producer |
| Kevin Burik | Stunts |
| Blaise Corrigan | Stunts |
| Nico Coucke | Stunts |
| Greg Harvey | Stunts |
| Jaime Miller | Stunts |
| Aaron Vexler | Stunts |
| Tom Ozanich | Sound Re-Recording Mixer |
| Dean A. Zupancic | Sound Re-Recording Mixer |
| Alexios Chrysikos | Conceptual Illustrator |
| Edward A. Ioffreda | Graphic Designer |
| Kirstin Mooney | Art Department Coordinator |
| Morgan Vice | Art Department Coordinator |
| Paul Cheponis | Assistant Set Decoration |
| Heather Prendergast | Assistant Set Decoration |
| Daniel Castle King | Production Supervisor |
| Liv Banks | Production Supervisor |
| Liz Hedges | Second Assistant "A" Camera |
| Cornelia Klapper | Second Assistant "B" Camera |
| Naima Noguera | Camera Loader |
| Brett Norman | Camera Loader |
| John-Paul Natysin | Utility Sound |
| Timothy Metzger | Leadman |
| Tonero Williams | Set Dresser |
| Joseph E. Petruccio | Set Dresser |
| Joel Weaver | Property Master |
| Jessie Pellegrino | Assistant Property Master |
| John G. Velez | Gaffer |
| Inyoung Choi | Best Boy Electrician |
| Kevin Lowry | Key Grip |
| Vincent Pierce | Best Boy Grip |
| Monique Mitchell | Key Rigging Grip |
| John Mang | Dolly Grip |
| Zach Frank | Dolly Grip |
| Charles Brennan | Grip |
| Kenneth Fundus | Grip |
| Matt Kessler | Grip |
| Connor Plunket | Grip |
| Chris Guzzo | Rigging Grip |
| Tommy Kempf | Rigging Grip |
| Quinn Marshall | Rigging Grip |
| Alana Katt | Assistant Costume Designer |
| Kristen Kopp | Assistant Costume Designer |
| Natalie Turturro Mettouchi | Assistant Costume Designer |
| Dan Urlie | Assistant Costume Designer |
| Sian Grigg | Makeup Department Head |
| Elisa Tallerico | Makeup Artist |
| Kate Edwards | Wardrobe Supervisor |
| Ana Perdita | Costumer |
| Juliet Breza | Costume Coordinator |
| Jimmy Goode | Hairstylist |
| Adrienne Abseck | Costumer |
| Courtney R. Alfrey | Costumer |
| Alberto D'Fonseca | Costumer |
| Nicolas Destevens | Costumer |
| Erica Reusse | Costumer |
| Richard A. Zimmer | Costumer |
| Vivian Baker | Prosthetic Makeup Artist |
| Michael Fontaine | Prosthetic Makeup Artist |
| Megan Longmeyer | Prosthetic Makeup Artist |
| Mike Mekash | Prosthetic Makeup Artist |
| Michael Hall | Production Coordinator |
| Pete Marvelli | Assistant Production Coordinator |
| Charlie Kaplowitz | Assistant Production Coordinator |
| John Aufiero | Assistant Production Coordinator |
| Samson Jacobson | Location Manager |
| Sarah Brady Stack | Assistant Location Manager |
| Danny Perry | Assistant Location Manager |
| Alex Gorodetsky | Charge Scenic Artist |
| Kate Fitzgerrell | Scenic Artist |
| Kevin Gillespie | Scenic Artist |
| David Hawkinson | Scenic Artist |
| Jennifer Hodges | Scenic Artist |
| Eugene Kagansky | Scenic Artist |
| Carter Kustera | Scenic Artist |
| Roman Lystvak | Scenic Artist |
| Mary Moser | Scenic Artist |
| Katherine Rondeau | Scenic Artist |
| Murphey Wilkins | Scenic Artist |
| Erich Winzer | Scenic Artist |
| Jeff Brink | Special Effects Coordinator |
| Ryan Nordin | Special Effects Technician |
| Danny Brink | Special Effects Technician |
| Ray Stenzel | Construction Coordinator |
| Tom Gregory | Key Carpenter |
| Franz Yeich | Key Construction Grip |
| Amber Maiden | Additional Second Assistant Director |
| Dayna Katz | Casting Associate |
| Leah Shapiro | Casting Assistant |
| Grant Wilfley | Extras Casting |
| Kendall Bates | Extras Casting Assistant |
| Justin Peck | Choreographer |
| Craig Salstein | Associate Choreographer |
