 | Lana Condor als Lara Jean Song Covey |
 | Noah Centineo als Peter Kavinsky |
 | Janel Parrish als Margot Song Covey |
 | Anna Cathcart als Katherine "Kitty" Song Covey |
 | Andrew Bachelor als Greg Rivera |
 | Trezzo Mahoro als Lucas James |
 | Emilija Baranac als Genevieve |
 | Madeleine Arthur als Christine |
 | Israel Broussard als Josh Sanderson |
 | John Corbett als Daniel Covey |
 | Kelcey Mawema als Emily Nussbaum |
 | Julia Benson als Mrs. Kavinsky |
 | Joey Pacheco als Owen Kavinsky |
 | Edward Kewin als Kenny |
| Jordan Burtchett als John Ambrose McClaren |
 | June B. Wilde als Joan |
 | Isabelle Beech als Young Lara Jean |
 | Hunter Dillon als Young Peter |
 | Christian Michael Cooper als Young Josh |
 | Rhys Fleming als Young Genevieve |
 | Pavel Piddocke als Young John Ambrose |
 | Jeb Beach als Coach |
 | Cameron Crosby als Guy |
 | Yael Yurman als Tiny Freshman |
| Tamara Notcutt | Casting |
| Paul Joyal | Production Design |
| Vicki Sotheran | Co-Producer |
| Michael Fimognari | Director of Photography |
| Joe Klotz | Editor |
| Lewis Goldstein | Supervising Sound Editor |
| Lewis Goldstein | Sound Re-Recording Mixer |
| Susan Johnson | Director |
| Sean Kennedy | Stand In |
| Joe Wong | Original Music Composer |
| Phillip J. Bartell | Editor |
| Brett Armstrong | Stunt Coordinator |
| Shaun Brennan | Foley Artist |
| Don Dunn | Executive Producer |
| Joyce Sawa | Unit Production Manager |
| Heather Gittens | Production Coordinator |
| Tiffany Mak | Local Casting |
| Brian Bowles | Dialogue Editor |
| Anne-Cécile Boulais | Script Supervisor |
| Ulysses Guidotti | Assistant Editor |
| Peter Dashkewytch | First Assistant Director |
| Mikael Sandgren | Music Editor |
| Timothy Hedgecock | Gaffer |
| Steve Scott | Art Direction |
| Travis J. Brooks | Greensman |
| Bobbi Allyn | Set Decoration |
| Chris Wells | Visual Effects Supervisor |
| Matt Kaplan | Producer |
| Robyn Marshall | Executive Producer |
| Sharon Toohey | Key Makeup Artist |
| Brett Bouttier | Executive Producer |
| Will Minsky | First Assistant "B" Camera |
| Cherilynn Fulbright | Stand In |
| Dan Power | Still Photographer |
| Jill Bogdanowicz | Digital Colorist |
| Lee Novak | Key Hair Stylist |
| Hayden MacDonald | Dailies Operator |
| Warren Fischer | Associate Producer |
| Lindsay Wolfington | Music Supervisor |
| Kevin Hall | "A" Camera Operator |
| Scott Kozak | Rigging Grip |
| Kent MacDonald | Transportation Coordinator |
| Laura Webb | Music Supervisor |
| Dustin Lange | Property Master |
| Alfred DeGrand | Assistant Sound Editor |
| Max Siemers | Co-Producer |
| Jessica Held | Co-Producer |
| Rafaella Rabinovich | Costume Design |
| Wen Hsuan Tseng | Foley Editor |
| Laura Irvine | Location Manager |
| Tammy Jones | Steadicam Operator |
| Tammy Jones | "B" Camera Operator |
| Alex Soto | Sound Effects Editor |
| Ryan Purcell | Steadicam Operator |
| Ryan Purcell | "B" Camera Operator |
| Quincy Wheeler | First Assistant Director |
| Kyle T. Moore | Special Effects Coordinator |
| Sara Brown | Extras Casting |
| Sergei Bachlakov | Still Photographer |
| Geoff Brown | Best Boy Grip |
| Brian Smith | Key Grip |
| Jennifer Li | Stunt Double |
| Damian Kliman | Best Boy Electric |
| Jordan Levin | Producer |
| Jenny Han | Executive Producer |
| Jenny Han | Novel |
| Sofia Alvarez | Screenplay |
| Dougie Cash | Producer |
| Kelsey Jackson | Co-Producer |
| Megan Greydanus | Co-Producer |
| Marijke Richman | First Assistant Director |
| Eddy Hardy | Second Assistant Director |
| Jüs Percy | Third Assistant Director |
| Benjamin Gardere | Third Assistant Director |
| Connie Hardie | First Assistant Production Coordinator |
| Tessa Irwin | Production Office Assistant |
| Aidan West | Production Office Assistant |
| Laurie Watt | Production Accountant |
| Darlene Lofgren | Production Accountant |
| Melissa Jehring | Production Accountant |
| Allie Wright | Production Accountant |
| Luke Barlow | First Assistant "A" Camera |
| Michael Eubank | Second Assistant "A" Camera |
| Vincent Stander | Second Assistant "B" Camera |
| Marcus Fung | Second Assistant "B" Camera |
| Jordan Jakobczyk | Digital Imaging Technician |
| Jessica Thalmann | Camera Trainee |
| Josh Rohrback | Generator Operator |
| Jay Anderson | Rigging Gaffer |
| John Bivens | Dolly Grip |
| Quentin Bowman | Dolly Grip |
| Martin Nicholas | Dolly Grip |
| Wilson Polk | Grip |
| Ryan Palethorpe | Grip |
| Drew Coupar | Rigging Grip |
| Sinziana Corozel | Assistant Location Manager |
| Jose Luis Gutierrez | Key Production Assistant |
| Jillian Budac | Key Production Assistant |
| Jonty Davies | Key Production Assistant |
| Brett Sworder | Production Sound Mixer |
| Shauna Supeene | Boom Operator |
| Madison Farwell | First Assistant Makeup Artist |
| Valeria Barreda Mestas | First Assistant Hairstylist |
| Jessica McCormick | Assistant Costume Designer |
| Tina Dumais | Costume Coordinator |
| Levi Garcia | Costume Set Supervisor |
| Lynn Lafreniere | Truck Costumer |
| Patrick Macht | Property Master |
| Drake Woodland | On Set Props |
| Daryl Stapleton | Assistant Set Decoration |
| Lucas Chadwick | Set Decoration Buyer |
| Odete Passingham | Set Decorating Coordinator |
| Gerald Prefontaine | Driver |
| Keely Wood | Lead Set Dresser |
| Willow Heaton | Set Dresser |
| Dan Mansell | On Set Dresser |
| Brandon Valen | On Set Dresser |
| Louis Dominique | Construction Coordinator |
| Don Shui | Greensman |
| Chris Theodore | Special Effects Assistant |
| Colton Friesen | Special Effects Assistant |
| Heather McGowan | Casting Assistant |
| Alexis Allen | Casting Associate |
| Rachel Klinosky | Extras Casting Assistant |
| Suki Ardawa | Transportation Captain |
| Willis Rudachyk | Makeup & Hair |
| Curtis Campbell | Cast Driver |
| Carolyn Cummins | Cast Driver |
| Bal Ardawa | Driver |
| Christina Chalk | Craft Service |
| Than Hadjioannou | Security Coordinator |
| Michael Zwart | Catering |
| Brian Gileo | Chef |
| Jessica Bowser Fischer | Post Production Supervisor |
| Taylor Ward | Post Production Coordinator |
| Ashley McKinney | Assistant Editor |
| Taylor Landesman | Assistant Editor |
| Kelly Austin | Music Coordinator |
| Tracy Jemison | Color Assistant |
