 | Ben Platt als Amos Klobuchar |
 | Molly Gordon als Rebecca-Diane |
 | Noah Galvin als Glenn Winthrop |
 | Jimmy Tatro als Troy Rubinsky |
 | Caroline Aaron als Rita Cohen |
 | Ayo Edebiri als Janet Walch |
 | Nathan Lee Graham als Clive DeWitt |
 | Owen Thiele als Gigi Charbonier |
 | Amy Sedaris als Joan Rubinsky |
 | Patti Harrison als Caroline Krauss |
 | Bailee Bonick als Mackenzie Thomas |
 | Kyndra Sanchez als Darla Sanchez |
 | Donovan Colan als Devon Miller |
 | Vivienne Sachs als Lainey Fischer |
 | Alan Kim als Alan Park |
 | Alexander Bello als Sebastian Campbell |
 | Luke Islam als Christopher L |
 | Jack Sobolewski als Christopher S |
 | Dean Scott Vazquez als Toby Garcia |
 | Quinn Titcomb als Alice Taylor |
 | Madisen Lora als Franny King |
 | Max Sheldon als Salem |
 | Tyrone Mitchell Henderson als Devon Dad 1 |
 | Priscilla Lopez als Grandma Elizabeth |
 | David Rasche als Dr. Bill Rauch |
 | Nicklas Shalin als Boy Dancer 1 |
 | Emiko Diro als Girl Dancer 1 |
| Giada Leigh als Girl Dancer 2 |
 | Zyla Harris-Petter als Girl Dancer 3 |
 | Ceci Collura als Jennica Simmons |
 | Jonathan Lengel als Bobby Kay |
 | Olivia Puckett als Wendy |
| Anthony Morabito als Rotary Kid |
 | Gavin Coleman als Glenn's Tech Kid |
| Andrew Fetherolf als Devon Dad 2 (uncredited) |
| Jonathan Iturriaga-DaSilva als Tim (uncredited) |
| Erik Feig | Producer |
| Will Ferrell | Producer |
| Bernard Telsey | Casting |
| Jessica Elbaum | Producer |
| Evan Benjamin | Dialogue Editor |
| Ben Platt | Producer |
| Ben Platt | Writer |
| Ben Platt | Songs |
| Ben Platt | Original Film Writer |
| Charlotte Royer | Production Design |
| Jimmy Tatro | Executive Producer |
| Emmett Kerr-Perkinson | Camera Operator |
| Michael White | Key Hair Stylist |
| Angelique A. Pesce | Costume Assistant |
| Dann Fink | ADR Voice Casting |
| Dean Neistat | Stunt Coordinator |
| Noah Galvin | Producer |
| Noah Galvin | Writer |
| Noah Galvin | Songs |
| Noah Galvin | Original Film Writer |
| Maud Arnold | Choreographer |
| Bill Sherman | Music Producer |
| Nate Hurtsellers | Director of Photography |
| Nate Hurtsellers | Cinematography |
| Aina Lee | Makeup Artist |
| Mark Sean Haynes | Post Production Supervisor |
| Lindsay Wolfington | Music Supervisor |
| Jeff Valeri | Executive Producer |
| Jennifer Semler | Executive Producer |
| Molly Gordon | Director |
| Molly Gordon | Producer |
| Molly Gordon | Writer |
| Molly Gordon | Songs |
| Molly Gordon | Original Film Writer |
| Cédric Chabloz | First Assistant Director |
| Michael Bloom | Executive Producer |
| Dirt Haehnel | Dolly Grip |
| Shayne Fiske | Executive Producer |
| Mary Bundy | Executive Producer |
| Alex Noble | Visual Effects Supervisor |
| Jonathan Fuhrer | Sound Designer |
| Jonathan Fuhrer | Sound Effects Editor |
| Greg Meola | Key Grip |
| Jon Philpot | Editor |
| Samie Kim Falvey | Producer |
| Crystal Soveroski | Makeup Artist |
| Alex Brown | Executive Producer |
| Maria Zuckerman | Producer |
| Ryan Heller | Producer |
| Joshua First | Hair Department Head |
| Liv Swenson | Makeup Artist |
| Lauren Chen | Post Production Supervisor |
| Mariah Rachel Burke | Set Decoration |
| Nick Lieberman | Director |
| Nick Lieberman | Producer |
| Nick Lieberman | Writer |
| Nick Lieberman | Songs |
| Nick Lieberman | Original Film Writer |
| Michelle J. Li | Costume Design |
| Will Van Dyke | Music Producer |
| Talia Cohen | Associate Producer |
| Mark Sonnenblick | Original Music Composer |
| Mark Sonnenblick | Songs |
| Steve Gutierrez | Casting Assistant |
| Kristian Charbonier | Casting |
| Kristian Charbonier | Associate Producer |
| Julia Hammer | Producer |
| James McAlister | Original Music Composer |
| Lorena Montesdeoca | Assistant Set Decoration |
| Michael Infante | Sound Mixer |
| Heath Jacob Baldwin | Unit Production Manager |
| Sebastian Iervolino | First Assistant "A" Camera |
| Tayler Winer | Key Makeup Artist |
| Jordan Janota | Production Design |
| Andrew Sotomayor | Makeup Department Head |
| Katharina Schwab | Art Department Coordinator |
| Falon Jaloi Edouard | Hairstylist |
| Derek Bosworth | Additional Second Assistant Director |
| Tomi Hutton | Second Assistant Director |
| Andre Marigny | Second Second Assistant Director |
| Mike Albergo | On Set Dresser |
| Katrina Castillou | ADR Mixer |
| Cassi Bielmeier | Loader |
| Mary Elizabeth DelVecchio | Electrician |
| April Goldberg | Chief Lighting Technician |
| Jonathan Iturriaga-DaSilva | Electrician |
| Christopher Orrico | Electrician |
| Kimberly Sauer | Digital Imaging Technician |
| Max Schwarz | Second Assistant "A" Camera |
| Sharon Dixon | Extras Casting Assistant |
| Kira Ablak | Assistant Editor |
| Krystle Grandy | Travel Coordinator |
| Christopher Scotto | Set Decoration |
| Jake Sicilli | Set Decoration |
| Mitch Ely | Makeup Artist |
| Grace Fong | Makeup Artist |
