Theo Rossi Joins Prime Video Series ‘Delphi’ Cast in Creed Universe Project

Theo Rossi has joined the cast of Delphi, a new TV series planned for Prime Video that is produced out of Michael B. Jordan’s Outlier Society and set in the Creed universe, according to a report by Deadline published June 12, 2026. The project, titled Delphi, is described as an expansion of the film brand for streaming audiences, with Rossi among the newly announced cast additions.

Rossi, whose credits include roles in The Penguin and Sons of Anarchy, will appear in Delphi as it moves forward with its ensemble cast. Deadline’s casting update places Rossi alongside actors previously linked to the series, including Wood Harris, Niles Fitch, Dasan Frazier, Graham Patrick Martin, Brittany Adebumola, Rene Moran, Okieriete Onaodowan, and others.

Delphi is being developed with Outlier Society, the production company associated with Jordan. The report frames the series as a Prime Video release, putting the project within one of the largest U.S. streaming platforms and aligning it with the distribution and marketing reach that such platform deals typically bring.

The newly announced cast list also includes actors connected to widely viewed television and film projects. Deadline names Wood Harris from The Wire, Niles Fitch from Forever, Dasan Frazier from A Different World, Graham Patrick Martin from Catch-22, Brittany Adebumola from M.I.A., and Rene Moran from Cross. It also lists Okieriete Onaodowan, whose credits include Hamilton.

In addition to providing new casting details, the report characterizes Delphi as part of the broader Creed ecosystem. That connection indicates that the series will be marketed and developed with franchise continuity in mind, even as streaming adaptations and prequels or spinoffs often require separate storytelling arcs tailored to episodic formats.

No premiere date, episode count, or character-specific assignments for Rossi were included in the casting announcement. The report similarly does not describe filming schedules, production locations, or showrunner and writing team details beyond the companies and performers named in the cast update.

As Delphi continues to assemble its cast, the next steps for the production will typically include finalizing character roles, completing contractual onboarding for principal performers, and confirming production timelines. For audiences, the casting announcement is the latest report that Prime Video is continuing to invest in franchise-adjacent scripted series aimed at retaining existing fan bases while building new viewers.

For industry watchers, Delphi’s staffing also reflects the ongoing flow of recognizable television talent into major streaming projects. Rossi’s move into a Creed universe property highlights how established actors from long-running series and high-profile franchise-adjacent work can be used to anchor new streaming titles while the projects refine their story plans and release strategy.