Tick, Tick... Boom! (also stylized as tick, tick... BOOM!) is a 2021 American biographical musical drama film directed by Lin-Manuel Miranda in his feature directorial debut. Written by Steven Levenson, it is based on the stage musical of the same name by Jonathan Larson, a semi-autobiographical story about Larson's writing a musical to enter the industry. The film stars Andrew Garfield, Robin de Jesús, Alexandra Shipp, Joshua Henry, Judith Light, and Vanessa Hudgens.
| Actor | Character |
|---|---|
| Andrew Garfield | Jonathan Larson |
| Alexandra Shipp | Susan Wilson, Jonathan's girlfriend, a former dancer (based on Janet Charleston) |
| Vanessa Hudgens | Karessa Johnson, Jonathan's friend and a performer in Superbia and Tick, Tick... Boom! |
| Robin de Jesús | Michael, Jonathan's best friend, who quit acting for an advertising career (based on Matt O'Grady) |
| Joshua Henry | Roger Bart, Jonathan's friend and a performer in Superbia and Tick, Tick... Boom! |
| Jonathan Marc Sherman | Ira Weitzman, Head of Musical Theatre at Playwrights Horizons and the producer of the Superbia workshop |
| Mj Rodriguez | Carolyn, a fellow waitress at the Moondance Diner and Jonathan's friend |
| Ben Levi Ross | Freddy, a fellow waiter at the Moondance Diner and Jonathan's friend |
| Judith Light | Rosa Stevens, Jonathan's agent (based on Flora Roberts) |
| Bradley Whitford | Stephen Sondheim |
| Stephen Sondheim | Himself (voice only; appears in a voicemail in the movie) |
| Laura Benanti | Judy Wright, the head of the advertising focus group |
| Danielle Ferland | Kim, a member of the advertising focus group |
| Micaela Diamond | Peggy, a member of the advertising focus group |
| Utkarsh Ambudkar | Todd, a member of the advertising focus group |
| Gizel Jimenez | Cristin, a performer in the Superbia workshop |
| Kate Rockwell | Lauren, a performer in the Superbia workshop |
| Aneesa Folds | Danya, a performer in the Superbia workshop |
| Joel Perez | Lincoln, a performer in the Superbia workshop |
| Judy Kuhn | Nan (Nanette Larson), Jonathan's mother |
| Danny Burstein | Al (Allan Larson), Jonathan's father |
| Lauren Marcus | Donna, Jonathan's friend and videographer (based on Victoria Leacock Hoffman) |
| Richard Kind | Walter Bloom, head of the musical theater workshop |
| Tariq Trotter | H.A.W.K. Smooth, a street rapper and working actor |
| Ryan Vasquez | Scott, a friend of Roger's that he invites to Jonathan's party |
| Joanna P. Adler | Molly, a Strand Bookstore clerk |
| Jelani Alladin | David, Michael's partner |
| Shockwave | Building Doorman |