Lin-Manuel Miranda Assembles Star-Filled ‘Octet’ Cast Led by Amanda Seyfried, Rachel Zegler and Tramell Tillman
NEW YORK, NEW YORK - SEPTEMBER 28: Lin-Manuel Miranda attends "Waiting For Godot" opening night at the Hudson Theatre on September 28, 2025 in New York City. Photo Credit: John Lamparski
Lin-Manuel Miranda has unveiled the principal cast for his film adaptation of Octet, confirming an ensemble that pairs high-profile film stars with acclaimed theatre performers. The eight-person group reflects the structure of Dave Malloy’s original chamber musical, which centers on a support circle dealing with digital dependency.
The ensemble further includes Jonathan Groff as Henry, Gaten Matarazzo as Toby, Tramell Tillman as Marvin and Paul‑Jordan Jansen as Ed, rounding out the titular octet. Commentators have noted that this casting maintains the musical’s core focus on eight distinct perspectives inside a single support group, while also leveraging the visibility of well-known screen actors and Broadway veterans.
Background and creative team
Octet is a chamber musical by composer, lyricist and writer Dave Malloy, first staged Off‑Broadway at Signature Theatre in 2019 as an a cappella exploration of internet addiction. The show follows eight people who meet in a church basement to discuss their experiences with online compulsion and digital life, using only voices and minimal instrumentation to build its sound world.
Miranda previously announced that he would direct the film adaptation, with Malloy adapting his own book and score for the screen. Malloy is also expected to serve as an executive producer, a role intended to help maintain continuity between the stage work and its cinematic interpretation.
This film will be Miranda’s second feature directorial project after the 2021 adaptation of Jonathan Larson’s tick, tick…BOOM!, which was produced under his 5000 Broadway Productions banner. Reports indicate that 5000 Broadway Productions will again be among the producers on Octet, joined by additional producing partners from the independent film space.
Themes of digital life and connection
The original Octet centers on eight people who gather in a support group to talk through their relationships with technology, from social media and gaming to online conspiracy spaces, in a narrative that explicitly addresses internet addiction. The piece uses interlocking harmonies, character monologues and group confession to chart how online habits affect mental health, relationships and the search for meaning.
Descriptions of the stage production emphasize that the group locks away their phones at the outset of the meeting, a gesture that frames the story’s attempts to reclaim attention and presence. The musical’s use of an a cappella score has been highlighted as a way of foregrounding human voices and analog sound in contrast to the constant digital noise of contemporary life.
Commentary on the forthcoming film notes that this thematic structure may take on different resonance in a screen medium, where audiences often engage via streaming platforms or personal devices. Analysts suggest that a movie musical about digital overuse, released into the same ecosystem it critiques, could reach viewers who recognize their own online routines in the characters’ stories.
Star ensemble and industry positioning
The announced cast places Oscar nominee Amanda Seyfried and West Side Story actor Rachel Zegler alongside performers closely associated with Miranda’s theatre work, such as Phillipa Soo and Jonathan Groff. Coverage has highlighted that Zegler recently earned major awards recognition on the London stage, while Ralph, Groff and others bring experience from Emmy- and Tony-recognized projects, potentially broadening the film’s international appeal.
Tramell Tillman, known for his work on series such as Severance, and Paul‑Jordan Jansen, whose credits include stage roles, are positioned as part of a more eclectic mix of screen and theatre artists within the octet. Gaten Matarazzo, widely recognized from Stranger Things, also joins the group, adding a performer with a significant younger fan base and recent Broadway musical experience.
Industry observers have pointed out that the casting reinforces Miranda’s pattern of blending theatre-rooted performers with mainstream film and television stars, a strategy visible in earlier projects that sought both artistic credibility and wide audience reach. Commentaries also note that the ensemble includes performers of diverse backgrounds and experiences, a casting approach that aligns with ongoing discussions in the industry about representation and inclusion for artists across gender identities, sexual orientations, races and ethnicities.
Production timeline and what comes next
When the film adaptation was initially announced in early April, several outlets reported that casting and production details would follow at a later date, indicating that development was still in progress. Subsequent reporting on April 14 confirms that rehearsals have begun this month, marking a concrete step toward production even as distribution plans and a release date have not yet been made public.
Earlier coverage of the project emphasized that Miranda had been drawn to Octet since attending director Annie Tippe’s premiere production in November 2019, describing Malloy’s score as “versatile” and “brilliant” in a press statement about the adaptation. That long-term engagement, along with Malloy’s direct involvement, has been cited by commentators as a signal that the creative team intends to preserve the show’s intimate, character-focused core even as the story scales up to a film format.
As the movie moves through rehearsals and into production, observers are watching how the adaptation will translate an a cappella stage piece into a cinematic language, and how the filmmakers will depict the characters’ digital lives without losing the original’s emphasis on human presence in shared physical space. For audiences who have followed Miranda’s work across theatre and film, Octet represents a new experiment in bringing a thematically contemporary, musically intricate and ensemble‑driven story about online life and offline community into the mainstream movie-musical landscape.
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