Millie Bobby Brown & David Harbour Starring in Spy Series

(L-R) Millie Bobby Brown and David Harbour attend Netflix’s ‘Stranger Things’ Season 5 World Premiere at TCL Chinese 6 Theatres on November 06, 2025 in Hollywood, California. Photo: Jerod Harris/Getty Images for Netflix.

Preview:

Millie Bobby Brown and David Harbour are starring in a new spy thriller series.
It’ll see the pair racing to stop a dangerous threat.
‘Adolescence’ writer Jack Thorne crafted the scripts.

While there were rumors about trouble between Millie Bobby Brown and David Harbour on the set of ‘Stranger Things,’ it would seem they’re ready to put all that behind them.

The actors have now signed on to reunite for a new Netflix series (co-produced with A24), this time a spy drama that will find them playing an actual father and daughter.

“It only gets stranger…”

Air Date: July 15th, 2016

Jack Thorne, who scripted the excellent ‘Adolescence,’ is at work on the new series.

Related Article: TV Review: ‘Stranger Things’ Final Season

What’s the story of the new Millie Bobby Brown/David Harbour show?

In the series, inspired by Paul Warner’s debut novel ‘A Spy In the Blood,’ 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.

Millie Bobby Brown and David Harbour spy series: the streamer talks

Here’s what Netflix’s head of scripted series Jinny Howe had to say about the new project:

“We are delighted to bring this spy drama to life with an extraordinary group of talent we’ve been fortunate to collaborate with before. Jack Thorne’s ability to find the deeply human story inside a thriller is unmatched, and watching Millie Bobby Brown and David Harbour reunite — this time as estranged father and daughter on opposite sides of a crisis — is something audiences are going to love. A24 is the perfect partner to bring this story to our members around the world.”