Netflix Thriller Reunion
Millie Bobby Brown and David Harbour Reunite for Netflix Spy Thriller Series
Key Points
The series centers on Matt Wolfe, an ex-FBI agent who now works as a security consultant, who returns to espionage when his estranged daughter Rebecca, an FBI agent, goes missing; it is based on Paul Warner's Spy in the Blood.
Jack Thorne (Adolescence co-creator) is writing the series, with A24 producing; Millie Bobby Brown will also serve as a producer, continuing her collaborative run with Harbour, while Netflix leadership publicly supports the project.
Public discussions about on-set tensions were addressed by the stars, with Harbour calling prior reports false and noting warmth at a premiere, and Brown emphasizing their long-standing, collaborative relationship.
The project is framed as a Stranger Things–level reunion for Brown and Harbour, backed by Netflix and connected to their history of successful collaborations with Thorne and A24; Brown and Harbour have both discussed the enduring appeal of working together and the show’s global reach.
Netflix has ordered a new spy thriller series starring Millie Bobby Brown and David Harbour as an estranged father and daughter — reuniting the beloved The Independent pair for the first time since *Stranger Things* ended its ten-year run in December 2025. The untitled show is based on Paul Warner's debut novel *A Spy in the Blood*, written by Jack Thorne, and produced by A24.
Harbour plays Matt Wolfe, a disgraced ex-FBI agent turned security consultant who is pulled back into espionage when his daughter Rebecca — played by Brown — goes missing. Brown will also serve as executive producer through her company PCMA Productions, according to Deadline.
Stranger Things Duo Reunite After Feud Rumors
The announcement comes seven months after tabloid reports alleged Brown filed a bullying complaint against Harbour during *Stranger Things* Season 5 production. Harbour broke his silence in a June 10 *Variety* cover story, calling it a "simple rupture-and-repair thing" and hinting at a future project with Brown. Brown then teased the show on the *Happy Sad Confused* podcast on June 25, saying the project was "David's idea," according to Men's Journal.
The Daily Beast noted that the high-profile collaboration "may put a conclusive end to rumors of on-set tension," framing the series as a public show of mutual respect. Harbour and Brown have now worked together for 10 years — he is 51, she is 22.
Jack Thorne and A24 Signal a Prestige Spy Show
Jack Thorne is writing and serving as executive producer. He is best known for *Adolescence*, which earned 13 Emmy nominations and eight wins, and is currently the second most-watched English-language series in Netflix history, according to The Playlist. *Stranger Things* Seasons 4 and 5 sit at third and fourth on that same list.
A24 is producing the series. The studio is known for character-driven, prestige storytelling. Netflix's head of scripted series Jinny Howe described the show as "a deeply human story inside a thriller." IGN reported that the project was fast-tracked internally, with insiders calling the greenlight a "no-brainer" given the pedigree of the team.
British Novel Gets an American FBI Makeover
Paul Warner's *A Spy in the Blood* was published January 29, 2026, and named "Thriller of the Month" by *The Times*. It holds a 3.94 out of 5 rating on Goodreads. The novel is set in Britain and centers on MI6 and a father named Mark Wolfe, according to HOLR Magazine.
For Netflix, the setting has been shifted to the FBI and the United States. Daily Express noted the change is designed to appeal to a wider domestic audience, with Harbour's working-class "Matt Wolfe" expected to play well in Middle America. Critics are watching to see if the novel's gritty British realism survives the switch.
Netflix Bets Big on Brown as Star and Producer
By giving Brown's production company PCMA a lead role, Netflix is locking in its most bankable young star as she moves into adult roles. Brown is set to appear in *Enola Holmes 3* — also written by Thorne — projected for July 1, 2026, according to Men's Journal. The Netflix-A24-PCMA alliance is becoming a recurring formula for the streamer.
The series is expected to be one of Netflix's most expensive domestic productions for the 2027 season. Fan reaction online has been largely positive. One top Reddit comment on r/StrangerThings, with 151 upvotes, called the news "the only way to heal the post-finale void," per The Daily Beast.
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