Millie Bobby Brown’s Upcoming Netflix Thriller With David Harbour: Everything We Know

Millie Bobby Brown and David Harbour are set to reunite for a new untitled Netflix thriller, bringing the popular Stranger Things duo back together on screen. Netflix announced the project in June 2026, revealing that the A24-produced drama has received a straight-to-series order.

Emmy-winning writer Jack Thorne (Adolescence, Lord of the Flies) will write and executive-produce the series, while Brown and Harbour will not only star but also serve as executive producers. The pair are best known for playing Eleven and Jim Hopper, the beloved father-daughter duo in Netflix’s hit series Stranger Things. Here’s everything we know so far about their new Netflix thriller.

Millie Bobby Brown and David Harbour’s Netflix Thriller Release Date

Netflix has officially announced Millie Bobby Brown and David Harbour’s new thriller series, but many important details are still under wraps. The streaming platform has not revealed a release date, so fans will have to wait for more updates. Netflix has also not announced the title of the series or shared how many episodes it will have.

As production moves forward, Netflix is expected to reveal more information in the coming months. Until then, fans will have to be patient and watch for official announcements about the highly anticipated thriller.

What Is the Untitled Netflix Thriller About?

The untitled Netflix thriller follows Matt Wolfe, a disgraced FBI agent working as a security expert, in search of his estranged daughter and an FBI agent, Rebecca, who disappears during a mission. The official synopsis of the series reads,

Disgraced FBI agent turned security expert Matt Wolfe (Harbour) is drawn back into the world he left behind when his estranged daughter, Rebecca (Brown), now an FBI agent determined to follow in his footsteps, vanishes on a mission, forcing him to return to a field that has evolved beyond him.

Netflix’s Head of Scripted Series for the US and Canada, Jinny Howe, has shared that the team is excited to bring the spy drama to life with A24. She said to Netflix,

We are delighted to bring this spy drama to life with an extraordinary group of talent we’ve been fortunate to collaborate with before,

Howe also praised writer Jack Thorne for blending human emotion with suspense while affirming that fans will enjoy seeing Brown and Harbour reunite as an estranged father and daughter.

Who Is in the Cast Alongside the Stranger Things Stars?

So far, Netflix has confirmed only two cast members for the untitled thriller. Millie Bobby Brown and David Harbour will star as estranged father and daughter, Rebecca and Matt Wolfe. No other cast members have been announced yet.

The series is written and executive produced by Emmy-winning writer Jack Thorne, with Brown and Harbour also serving as executive producers. Jake Bongiovi and Robert Brown will executive produce for PCMA Productions. They are joined by Joe Hipps and Patrick McDonald for Cut To, along with KC Wenson for Bravo Axolotl. More casting details are expected to be revealed in the future.

Where to Watch the Untitled Netflix Thriller?

The untitled thriller starring Millie Bobby Brown and David Harbour will be released on Netflix and will be available to stream exclusively on the platform once it premieres. To watch the series, viewers will need an active Netflix subscription. Netflix offers several plans to suit different budgets and viewing preferences.

Plan	Price	Feature
Standard with ads	$8.99/month	Ad-supported streaming
Standard	$19.99/month	Add 1 extra member for $7.99/month with ads or $9.99/month without ads
Premium	$26.99/month	Add up to 2 extra members for $7.99 each/month with ads or $9.99 each/month without ads

Viewers can choose the plan that best fits their needs to stream the series after its release.

What are your thoughts on Millie Bobby Brown and David Harbour’s reunion in the untitled Netflix thriller? Share with us in the comments below.

Stranger Things is streaming on Netflix.