Netflix is bringing one of its most beloved on-screen family pairings back together. Millie Bobby Brown and David Harbour are set to reunite as father and daughter in an all-new Netflix spy thriller series, years after playing Eleven and Jim Hopper on Stranger Things. The streamer announced the project on June 26, confirming that the duo will headline a new show from writer Jack Thorne and producer A24.
The untitled series is described as a spy drama loosely based on Paul Warner’s debut novel A Spy in the Blood. Harbour will play Matt Wolfe, a disgraced FBI agent turned security expert, while Brown will play his estranged daughter Rebecca, an FBI agent who vanishes on a mission — forcing him back into a world he thought he had left behind.
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What the New Series Is About
The premise gives Brown and Harbour another emotional father-daughter setup, but this time in a very different genre. Instead of supernatural horror in Hawkins, the pair will be at the center of an espionage thriller built around separation, danger, and a missing-person mission. Netflix’s official logline, quoted by multiple outlets, frames the story around a father pulled back into action when his daughter disappears while following in his footsteps.
Series Overview
| Category | Details |
|---|---|
| Lead stars | Millie Bobby Brown, David Harbour |
| Platform | Netflix |
| Genre | Spy thriller |
| Source material | Loosely based on A Spy in the Blood by Paul Warner |
| Writer/creator | Jack Thorne |
| Producer | A24 |
| Character names | Matt Wolfe and Rebecca |
Why This Reunion Matters
Brown and Harbour spent nearly a decade building one of Netflix’s most recognizable father-daughter relationships on Stranger Things, which ran from 2016 to 2025. Their reunion is likely to resonate with fans who watched that bond evolve across five seasons. It also comes shortly after Harbour himself hinted that he and Brown were developing “several” projects together, saying “10 years wasn’t enough.”
For Brown, the new series extends her already deep relationship with Netflix, where she has led Stranger Things and the Enola Holmes films. It also reunites her with Jack Thorne, who wrote the Enola Holmes movies and now takes the lead creatively on this thriller.
The Team Behind the Show
Jack Thorne’s involvement gives the project serious prestige. He was recently praised for Adolescence, and Netflix executive Jinny Howe said in the announcement that his ability to find “the deeply human story inside a thriller” was a major reason for excitement around the series. She added that audiences will love seeing Brown and Harbour reunite “as estranged father and daughter on opposite sides of a crisis.”
The addition of A24 also signals that Netflix is positioning this as more than a standard commercial spy show. The combination of a proven Netflix duo, a well-known writer, and a respected production company suggests the streamer sees this as one of its higher-profile upcoming originals.
Key Creative Team
| Role | Name/Company |
|---|---|
| Lead actor | David Harbour |
| Lead actor | Millie Bobby Brown |
| Writer/creator | Jack Thorne |
| Production partner | A24 |
| Streaming home | Netflix |
What Happens Next
As of now, Netflix has not announced a title, release date, or additional cast. The project is still in the early announcement phase, but the concept alone has already made it one of the more talked-about new series in development. Given the popularity of both stars and the lingering affection for their Stranger Things dynamic, expectations are already high.
What makes the series especially intriguing is that it gives Brown and Harbour a chance to revisit a familiar emotional structure in a completely different storytelling world. If Stranger Things was about protecting a child from monsters, this new show sounds more like a race through adult danger, institutional failure, and family fracture. That tonal shift could help the reunion feel fresh rather than nostalgic repetition. That last point is an inference based on the reported premise and genre.
Netflix clearly knows the power of pairing Millie Bobby Brown and David Harbour again. Their new father-daughter spy thriller already has a strong emotional hook, a recognizable creative team, and built-in audience curiosity. For now, the title remains under wraps — but the reunion itself is enough to make this one of Netflix’s most anticipated future series.
FAQs
What is the new Millie Bobby Brown and David Harbour series about?
It’s a Netflix spy thriller about a disgraced former FBI agent who is pulled back into action after his estranged daughter disappears on a mission.
Are Millie Bobby Brown and David Harbour playing father and daughter again?
Yes. Netflix announced they will reunite as father and daughter in the new series.
Is the series based on a book?
Yes, it is loosely based on Paul Warner’s debut novel A Spy in the Blood.
Who is writing the series?
Jack Thorne is attached as the writer/creator.
Does the show have a release date yet?
No. Netflix has announced the project, but not a release date.
