Evan Hansen, a high schooler with social anxiety, unintentionally gets caught up in a lie after the family of a classmate who committed suicide mistakes one of Hansen’s letters for their son’s suicide note.
| Evan Hansen | Ben Platt |
| Zoe Murphy | Kaitlyn Dever |
| Cynthia Murphy | Amy Adams |
| Alana Beck | Amandla Stenberg |
| Jared Kalwani | Nik Dodani |
| Heidi Hansen | Julianne Moore |
| Larry Mora | Danny Pino |
| Connor Murphy | Colton Ryan |
| Oliver | DeMarius R. Copes |
| Gemma | Liz Kate |
| Leila | Zoey Luna |
| Rhys | Isaac Powell |
| Skye | Marvin Leon |
| Cherise | Hadiya Eshe' |
| Naomi | Julia Chen Myers |
| Josh | Gerald Caesar |
| Isabelle | Avery Bederman |
| Mr. Howard | Swift Rice |
| Greg | Tommy Kane |
| Librarian | Aymee Garcia |
| Mrs. G | Mariana Alvarez |
| Partygoer | Amelia McArthur |
| Partygoer | Dru Reel |
| ''You Will Be Found'' Performer | Tess Aubert |
| ''You Will Be Found'' Performer | Robin Segal Skolnik |
| ''You Will Be Found'' Performer | Ceci Balagot |
| ''You Will Be Found'' Performer | Zachary Willis |
| ''You Will Be Found'' Performer | J. Quinton Johnson |
| ''You Will Be Found'' Performer | Raquel McPeek Rodriguez |
| ''You Will Be Found'' Performer | Ryan Basch |
| ''You Will Be Found'' Performer | Grace Lu |
| ''You Will Be Found'' Performer | Lio Mehiel |
| ''You Will Be Found'' Performer | Tanushree Sekhri |
| ''You Will Be Found'' Performer | Marcel Logan |
| ''You Will Be Found'' Performer | Dominic Lauren |
| ''You Will Be Found'' Performer | Luis Waldstein-McCabe |
| ''You Will Be Found'' Performer | Maccie Margaret Chbosky |
| ''You Will Be Found'' Performer | Naomi Rubin |
| ''You Will Be Found'' Performer | Cameron J. Armstrong |
| High School Student (uncredited) | Luke Bambrick |
| Self (uncredited) | Shane Berengue |
| Parent at Graduation / Parent at Memorial Service (uncredited) | Gloria Bishop |
| Student (uncredited) | Kaitlynn Boyle |
| Park Goer (uncredited) | Kristin Clark |
| Picnic Guy (uncredited) | Nathan W. Collins |
| High School Teacher (uncredited) | Deanna Crawford |
| Skeleton Crew (uncredited) | DaeSun Cupid |
| Law Firm Executive (uncredited) | Chris TC Edge |
| High School Student (uncredited) | Seth Fuentes |
| High School Student (uncredited) | Christopher Shea Hale |
| High School Student (uncredited) | Austin Scott Hunter |
