 | Ryan Gosling als Sebastian Wilder |
 | Emma Stone als Mia Dolan |
 | John Legend als Keith |
 | Rosemarie DeWitt als Laura Wilder |
 | J.K. Simmons als Bill |
 | Amiée Conn als Famous Actress |
 | Terry Walters als Linda |
 | Thom Shelton als Coffee Spiller |
 | Cinda Adams als Casting Director |
 | Callie Hernandez als Tracy |
 | Jessica Rothe als Alexis |
 | Sonoya Mizuno als Caitlin |
 | Claudine Claudio als Karen |
 | Jason Fuchs als Carlo |
 | D.A. Wallach als 80's singer |
 | Trevor Lissauer als Valet |
 | Olivia Hamilton als Bree |
 | Anna Chazelle als Sarah / Hula Hooper |
 | Marius de Vries als Clyde |
 | Finn Wittrock als Greg Earnest |
 | Josh Pence als Josh |
 | Nicole Coulon als Josh's Fiance |
 | Damon Gupton als Harry |
| Christopher Michael Stevens als Malcolm |
| Keith Harris als Cole |
 | Kaveh Rastegar als Tom |
 | Briana Lee als Echo Backup Singer |
 | David Douglas als Ty |
 | Miles Anderson als Alistair |
 | Bobo Chang als Photographer's Assistant |
 | Meagen Fay als Mrs. Dolan |
| John Hindman als Frank |
 | Valarie Rae Miller als Amy Brandt |
 | Nicole Wolf als Amy Brandt's Assistant |
 | Corrin Evans als New Barista |
 | Kiff VandenHeuvel als New Coffee Shop Manager |
 | Tom Everett Scott als David |
 | Hemky Madera als Jimmy |
| Zoë Hall als Chelsea |
 | Dempsey Pappion als Charles |
 | Sandra Rosko als Dream Audience |
 | Reshma Gajjar als Traffic Dancer - Girl #1 |
 | Candice Coke als Traffic Dancer - Girl #2 |
 | Hunter Hamilton als Traffic Dancer - 1st Man |
 | Damian Gomez als Traffic Dancer - 2nd Man |
 | Amanda Balen als Traffic Dancer - Conductor |
| Dominic Chaiduang als Traffic Dancer |
 | Cindera Che als Traffic Dancer |
 | Chris Moss als Traffic Dancer |
 | Marissa Labog als Traffic Dancer |
 | Tiffany Daniels als Traffic Dancer |
 | Melinda Sullivan als Traffic Dancer |
 | Stephanie Landwehr als Traffic Dancer |
 | Britt Stewart als Traffic Dancer |
 | Clarice Ordaz als Traffic Dancer |
 | Nathan Prevost als Traffic Dancer |
 | Scott Hislop als Hollywood Party Dancer - Creepy Guy |
 | Kc Monnie als Hollywood Party Dancer |
 | Krystal Ellsworth als Hollywood Party Dancer |
 | Sarah Mitchell als Hollywood Party Dancer |
| Khasan Brailsford als Hollywood Party Dancer |
 | Morgan Larson als Hollywood Party Dancer |
| Becca Sweitzer als Restaurant Dancer |
 | Gakenia Muigai als Restaurant Dancer |
 | Michael Stein als Restaurant Dancer |
 | Mario Diaz als Restaurant Dancer |
 | Julie Schmid als Epilogue Dancer |
| Lexie Contursi als Epilogue Dancer |
 | Eartha Robinson als Epilogue Dancer |
 | Sybil Azur als Epilogue Dancer |
| Tara Nicole Hughes als Epilogue Dancer |
 | Kayla Kalbfleisch als Epilogue Dancer |
 | Martha Nichols als Epilogue Dancer |
 | Anthony Marciona als Epilogue Dancer |
 | Bill Prudich als Epilogue Dancer |
 | Robert Roldan als Epilogue Dancer |
 | Ryan Novak als Epilogue Dancer |
 | Demian Boergadine als Epilogue Dancer |
 | Gustavo Vargas als Epilogue Dancer |
| Robert Haynes als Angry Neighbor |
 | Ana Flavia Gavlak als Young Actress (uncredited) |
 | Andres Perez-Molina als Coffee Shop Customer (uncredited) |
| Phillip E. Walker als Jazz Club Patron (uncredited) |
 | Milica Govich als Coffee Shop Customer #2 (uncredited) |
 | Kaye L. Morris als Producer's Girlfriend (uncredited) |
 | Nilla Elizabeth Watkins als Coffee Shop Customer (uncredited) |
 | Holly Houk als Kissing Couple (uncredited) |
 | Jesse Houk als Kissing Couple (uncredited) |
 | Kristin Slaysman als Coffee Shop Customer (uncredited) |
 | Cameron Brinkman als Jazz Club Patron (uncredited) |
 | Jordan Ray Fox als Nathan (uncredited) |
 | C.J. Stussi als Espresso Coffee Shop Customer (uncredited) |
 | Margaret Newborn als Jazz Club Goer (uncredited) |
 | Nadia Tumanova als Club Patron (uncredited) |
 | Crystal Nichol als Audition Actress (uncredited) |
 | Kristin Elliott als Audition Actress (uncredited) |
 | Andrea Lareo als Casting Assistant (uncredited) |
 | Christopher Aber als Cowboy (uncredited) |
| Anna Lunberry als Publicist (uncredited) |
 | Shannon Leann als Hollywood Starlet (uncredited) |
 | Jenna Curtis als Waitress (uncredited) |
 | Noah James als Young Man (uncredited) |
 | Tommy Cooley als Kissing Couple (uncredited) |
 | Morgan Cohen als Kissing Couple (uncredited) |
 | Jeremy Nathan Tisser als Freeway Truck Musician (uncredited) |
 | Patty Tobin als Casting Director (uncredited) |
 | Heather Turman als Young Man's Date (uncredited) |
| Susie Ganiere als Jazz Club Patron (uncredited) |
 | Ottavio Taddei als Swing Dancer (uncredited) |
 | April Martucci als Audition Girl (uncredited) |
 | Trent Kerpsack als Sailor (uncredited) |
 | Lynn Moore als Jazz Club Patron (uncredited) |
 | Vince Donvito als Coffee Guy (uncredited) |
 | Steffen Dziczek als Moviegoer (uncredited) |
 | Melvin LaThomas Brimm als Waiter (uncredited) |
 | Kelly Kennedy als Bubblegum Girl (uncredited) |
 | Clarence Robinson als Lighthouse Bass Player (uncredited) |
 | Dapo Torimiro als Jazz Club Guitar Player (uncredited) |
 | Destinee Handly als Barista (uncredited) |
 | Tommy Otis als Extra - Robert Evans (uncredited) |
 | Amanda Fields als Red Head Actress (uncredited) |
 | Frederick Keeve als Restaurant Patron (uncredited) |
| Ali Arda Özdeniz als Jazz Club Staff (uncredited) |
 | Sasha Fine als Jazz Club Staff (uncredited) |
 | Eren Kayakıran als Jazz Club Staff (uncredited) |
| Corey Anderson als Hollywood Party Dancer - Agent #2 |
| Peter Kohn | Assistant Director |
| David Wasco | Production Design |
| Deborah Aquila | Casting |
| Gary Gilbert | Producer |
| Mary Zophres | Costume Design |
| Sandy Reynolds-Wasco | Set Decoration |
| Austin Gorg | Art Direction |
| Marc Platt | Producer |
| Mildred Iatrou | Supervising Sound Editor |
| Michael Beugg | Executive Producer |
| Daniel Bradford | Set Designer |
| Jeffrey Harlacker | Post Production Supervisor |
| Jeffrey Harlacker | Associate Producer |
| Danny Downey | Stunts |
| Jacklin Masteran | Hairstylist |
| Carl Pedregal | Executive In Charge Of Post Production |
| Robert Foulkes | Location Manager |
| Robert Foulkes | Location Scout |
| John Legend | Executive Producer |
| Eric Reichardt | Lead Painter |
| Damien Chazelle | Director |
| Damien Chazelle | Writer |
| Damien Chazelle | Lyricist |
| Dale Robinette | Still Photographer |
| Mark Kubr | Stunt Coordinator |
| Bart Lipton | Production Supervisor |
| Linus Sandgren | Director of Photography |
| Tricia Wood | Casting |
| Steven Frohardt | Rigging Grip |
| Tom Cross | Editor |
| Jacob Whitley | Production Office Assistant |
| Scott Trimble | Location Scout |
| Kim Richey | Property Master |
| Jo Kissack Folsom | Assistant Costume Designer |
| Kevin Becker | Sound Designer |
| Jordan Horowitz | Producer |
| Marius de Vries | Executive Music Producer |
| Lynda Foote | Costume Supervisor |
| Barbara Lorenz | Hair Department Head |
| Dan O'Connell | Foley |
| Andy Nelson | Sound Re-Recording Mixer |
| Kevin Cross | Set Designer |
| Attila Kiss | Property Master |
| Luis Galdames | Sound Effects Editor |
| Lee Gilmore | Sound Effects Editor |
| John T. Cucci | Foley |
| Ai-Ling Lee | Supervising Sound Editor |
| Ai-Ling Lee | Sound Re-Recording Mixer |
| Craig Dollinger | Boom Operator |
| Lyn Matsuda Norton | Script Supervisor |
| Steve Beimler | Location Scout |
| Amy Lederman | Makeup Artist |
| Tim LeDoux | Visual Effects Supervisor |
| Jason Sanford | Visual Effects Producer |
| Geno Hart | Transportation Coordinator |
| Laura Wolford | Set Costumer |
| Ari Robbins | Steadicam Operator |
| Edward J. Protiva | Leadman |
| Fríða Aradóttir | Hairstylist |
| David Schmalz | Video Assist Operator |
| Jed Dornoff | Makeup Artist |
| Justin Hurwitz | Original Music Composer |
| Justin Hurwitz | Songs |
| Justin Hurwitz | Orchestrator |
| Marty Osborne | Driver |
| Mark Avery | Set Costumer |
| Ken Lebre | Other |
| Torsten Witte | Makeup Department Head |
| Justin Paul | Songs |
| Justin Paul | Lyricist |
| Tom Lalley | Sound Re-Recording Mixer |
| Thomas Conrad | Other |
| Eric Salas | Utility Stunts |
| Michael Anthony Travers | Rigging Grip |
| Chris Weigand | Lighting Technician |
| Thomas Kuo | Other |
| John F. Teeple | Driver |
| Steven Morrow | Sound mixer |
| Nicolas Bosc | Stunts |
| Medusah | Hairstylist |
| Patrick Clancey | Digital Compositors |
| Jeremy Hays | Special Effects Coordinator |
| Jimmy Hart | Utility Stunts |
| Jennie Harris | Set Decoration Buyer |
| John To | First Assistant Editor |
| Kent Baker | Rigging Grip |
| Jose F. Barrios | Rigging Grip |
| Blake Collins | Foley |
| James Ashwill | Foley |
| Chad R. Davis | Set Dressing Artist |
| Timothy Scott Ralston | Executive In Charge Of Post Production |
| Adam Pere | Visual Effects Coordinator |
| Gregory Paul Austin | Construction Foreman |
| David Ladish | Set Dressing Artist |
| David Ladish | Set Dresser |
| Davon Slininger | Camera Operator |
| Owen Patry | Production Office Assistant |
| Mike Jackson | Executive Producer |
| Ty Stiklorius | Executive Producer |
| Albert Elizondo | Makeup Artist |
| Yukiko Kinkel | Makeup Artist |
| Aubrey Marie | Hairstylist |
| Lali Peer | Makeup Artist |
| Haruyo Sawada | Makeup Artist |
| Steven R. Soussanna | Hairstylist |
| Paula Case | Assistant Director |
| Eddie Acuña | Construction Foreman |
| David Agajanian | Set Dressing Artist |
| Christopher Branan | Carpenter |
| Matthew Cavaliero | Property Master |
| Tina Charad | Leadman |
| Chris Forster | Construction Coordinator |
| Wes Hottman | Art Department Assistant |
| Steven Ladish | Set Dressing Artist |
| Steven Light-Orr | Assistant Art Director |
| Geoffrey Mandel | Other |
| Rick McLean | Standby Painter |
| John Youngblood | Assistant Property Master |
| Daniel Hyun Lim | Other |
| Michael Kaleta | Other |
| Fiifi Aggrey | Digital Compositors |
| Steve Dinozzi | Digital Compositors |
| Blake Goedde | Digital Compositors |
| Bryan Haines | Digital Compositors |
| Chris LeDoux | Visual Effects Supervisor |
| Olivia Courtney | Stunts |
| Ed McDermott II | Stunts |
| Allan Padelford | Stunts |
| Brett Praed | Stunts |
| Cameron Revier | Stunts |
| Josh Yadon | Stunts |
| James Frank Brown | Video Assist Operator |
| Anthony Cady | Grip |
| Dustin Evans | Other |
| Christopher Ferguson | Lighting Artist |
| Brad M. Hazen | Gaffer |
| Renee Treyball | Loader |
| Troy N. Wade | Grip |
| Rachel Wiederhoeft | Other |
| Sarah Scheussler | Set Costumer |
| Natasha Leonnet | Digital Intermediate |
| Kimi Rosenthal | Post Production Supervisor |
| Ray Ruotolo | Other |
| Josh Stein | Post Production Assistant |
| Matt Wallach | Other |
| Celeste Chada | Other |
| Tim Davies | Orchestrator |
| Steven Gizicki | Music Supervisor |
| Mark Graham | Sound Director |
| Liz Kinnon | Actor's Assistant |
| Fred Oliveira | Other |
| Moore Brian | Driver |
| Michael Connor | Transportation Captain |
| Gary Thomas Williams | Driver |
| Malcolm Arias | Finance |
| Demian Boergadine | Other |
| Lauren Coggiola | Actor's Assistant |
| Ami Cohen | Department Administrator |
| Richard Lee Dalton | Production Office Assistant |
| Anna J. DeMildt | Set Production Assistant |
| Jessi Eichberger | Production Office Assistant |
| Sommer Fehmel | Stand In |
| Stephanie M. Flores | Other |
| Michael A. Fry | Other |
| Hadeel Hadidi | Actor's Assistant |
| Ossey James | Stand In |
| Sherry Kecskes | Finance |
| Eloy Lara | Set Medic |
| Laurent Marchand | Other |
| Collin McShane | Other |
| Robert M. Melnik | Executive in Charge of Finance |
| Curtis A. Miller | Executive In Charge Of Production |
| Carly Olsson | Production Office Assistant |
| Carrie Prince | Other |
| Michael Riley | Title Graphics |
| Ross Risley | Production Office Assistant |
| Theresa Snider | Production Office Assistant |
| Danny Valle | Other |
| Whitney J. Willard | Production Accountant |
| Tyler John Young | Production Office Assistant |
| Kate Gray | Production Office Assistant |
| Fred Berger | Producer |
| Kerri Smeltzer | Production Coordinator |
| David Castillo | Stunts |
| Mandy Moore | Choreographer |
| Benj Pasek | Songs |
| Benj Pasek | Lyricist |
| Tom Callinicos | Set Dresser |
| Brandon Cornell | Utility Stunts |
| J.R. Vasquez | Set Dresser |
| Daniel Galindo | Score Engineer |
| Corina Kramer | Makeup Artist |
