 | Elsie Fisher als Kayla Day |
 | Josh Hamilton als Mark Day |
 | Emily Robinson als Olivia |
 | Jake Ryan als Gabe |
 | Daniel Zolghadri als Riley |
 | Fred Hechinger als Trevor |
 | Imani Lewis als Aniyah |
 | Luke Prael als Aiden |
 | Catherine Oliviere als Kennedy |
 | Nora Mullins als Steph |
 | Gerald Jones als Tyler |
 | Missy Yager als Mrs. Graves |
 | Shacha Temirov als Mason |
 | Greg Crowe als Mr. McDaniel |
 | Thomas J O'Reilly als Edmund |
 | Frank Deal als Officer Todd |
 | J. Tucker Smith als Mr. Graves |
 | Tiffany Grossfeld als Babs |
| Trinity Goscinsky-Lynch als Dylan |
 | Natalie Carter als Mrs. Roach |
 | Kevin R. Free als Mr. Denkert |
| Keith Maurice Davis als High School Boy |
 | Deborah Unger als Mrs. Nolan |
| William Alexander Wunsch als Brave Boy |
 | Marguerite Stimpson als Puberty Video Instructor |
| Tristan Wheeler als Andrew Fields |
| Kylie Seaman als Kristen S. |
| Dylan Vonderhorst als Dawn Ringlehein |
| Luke Mulligan als Jed Goodwin |
| Louisa Rose Guarasci als Jackie S. |
| Brenna Parker als Missy Bytel |
| William Koo als Garrett |
| Andrew Geher als Crazy Dancing Boy |
| Faith Kelly als Student |
| Jalesia Martinez als High School Student |
| Blair Seaman als High School Student |
 | Phoebe Amirault als Middle School Student |
| Veronica Bikowicz als Middle School Student |
| Castor Feinberg als Middle School Student |
| Molly Forman als Middle school student |
| Vivek Nickolas Mathews als Middle School Student |
| Olivia Galligan als Middle School Student |
| Kendall Seaman als Middle School Student |
| Nina Victoria Mathews als Middle School Student |
| Kaileen Quinones als Middle School Student |
| V. Rocco Russell als Middle School Student |
| Eli Bush | Producer |
| Scott Rudin | Producer |
| Bo Burnham | Director |
| Bo Burnham | Screenplay |
| Lila Yacoub | Producer |
| Christopher Storer | Producer |
| Anna Meredith | Original Music Composer |
| Jennifer Lilly | Editor |
| Sam Lisenco | Production Design |
| Linda Källérus | Still Photographer |
| Dan Edelstein | ADR Editor |
| Elizabeth Krekel | Location Manager |
| Vic Coram | Second Assistant Director |
| Henriette Vittadini | Set Decoration |
| Dann Fink | ADR Voice Casting |
| Tatiana Forster | Assistant Location Manager |
| Mark DeSimone | ADR Mixer |
| Tammy Douglas | Sound Mixer |
| Paul Stula | Sound Mixer |
| Emily Buntyn | Casting Assistant |
| Pete Olshansky | Production Manager |
| Jamin O'Brien | Executive Producer |
| Daniel Fisher | Property Master |
| Jay Fisher | ADR Mixer |
| Jake Krickhan | Extras Casting |
| Jeff Cornell | Digital Intermediate |
| Evelyn Fogleman | Second Second Assistant Director |
| Sam Evoy | Script Supervisor |
| Dan Taggatz | First Assistant Director |
| Jack Lewars | Digital Intermediate Colorist |
| Josh Olive | Colorist |
| Tom Ishizuka | Associate Producer |
| Barbara Jean Kearney | Production Manager |
| Meredith Tucker | Casting |
| Lawrence Zipf | Sound Re-Recording Mixer |
| Betsy Fippinger | Casting Associate |
| Allison Jones | Casting |
| Erica Severson | Assistant Property Master |
| Timothy Donovan | First Assistant Editor |
| William J. Hopper | Graphic Designer |
| Greg DeCellio | Boom Operator |
| Matt McLarty | Sound Mixer |
| Andrew Rice | ADR Mixer |
| Lawrence Zipf | Sound Effects Editor |
| Paul Goodstein | Key Grip |
| Brian Gackowski | Extras Casting Assistant |
| Joe Rudge | Music Supervisor |
| Michael Feuser | Dialogue Editor |
| Matthew Haasch | Foley Editor |
| Reynaldy Andre | Grip |
| Edward Cohen | Gaffer |
| Joshua Davy | Production Assistant |
| Rob L. Hubbard | Boom Operator |
| Sarah Guenther | Second Assistant "A" Camera |
| Abraham Friedman | Production Assistant |
| Garry Pastore | Leadman |
| Andrew Wehde | Director of Photography |
| Mitchell Travers | Costume Design |
| Heidi Pakdel | Makeup Department Head |
| Grace McNay Graham | Key Costumer |
| Hassan Boone | Costumer |
| Gary Malouf | "A" Camera Operator |
| Patrick Sokley | First Assistant "A" Camera |
| Rob Koch | First Assistant "B" Camera |
| Graham Burt | First Assistant "B" Camera |
| Bill Saxelby | Camera Operator |
| Sean P. Gilbert | Underwater Camera |
| Ted Goodwin | Best Boy Electric |
| Chris Wiesehahn | Best Boy Grip |
| Bernadette Pino | Art Department Coordinator |
| Anna Tringali | Costume Supervisor |
| Fiona Tyson | Key Makeup Artist |
| Jessica Padilla | Makeup Artist |
| Diana Sikes | Hair Department Head |
| Patricia Grande | Key Hair Stylist |
| Jessie Ng | Production Coordinator |
| Stephenie Mohamed | Production Secretary |
| Joe Facey | Craft Service |
| Isabel Henderson | Post Production Supervisor |
| Nathan Whiteside | First Assistant Editor |
| Skip Lievsay | Sound Re-Recording Mixer |
| Skip Lievsay | Supervising Sound Editor |
| Lee Salevan | Assistant Sound Editor |
| Jack Lewars | Colorist |
| Suzana Peric | Music Editor |
| John Carbonara | Music Editor |
| Edward Drohan IV | Special Effects Coordinator |
