Sky and HBO have announced the cast for their new legal drama series War, featuring Dominic West and Sienna Miller in lead roles. The show centers on a high-stakes divorce case between rival London law firms, with Celia Imrie and Nick Mohammed joining as series regulars. Production is underway, with a 2026 release expected on Sky and NOW.
What is War About?
War is a new legal thriller created and written by George Kay, following two prestigious rival law firms in London—Cathcarts and Taylor & Byrne—as they clash over a scandalous divorce case. The central conflict involves tech titan Morgan Henderson, played by Dominic West, and film star Carla Duval, portrayed by Sienna Miller. According to Sky, the series depicts "a scandalous divorce case that sends shockwaves through boardrooms, bedrooms, and courtrooms alike," where loyalties fracture and reputations hang in the balance.
The show is structured as an anthology, with season one focusing on this explosive case as the first in a series of headline-making legal battles. George Kay commented, "War is a legal drama full of double crossing, scandal, twists and betrayal. The kind of TV show that made me want to write TV shows."
Executive Producer Willow Grylls of New Pictures described the characters as "incredibly compelling," noting they "will have audiences rooting for them, despite the underhand tactics, dirty tricks and win at all cost mentality they bring to battle against each other in - and out - of court."
Meghan Lyvers, Executive Director of Original Scripted at Sky, added, "The show is ambitious and provocative, brimming with unforgettable characters. It challenges the notions of power, identity, and success."
Cast and Production
The ensemble cast includes:
- Dominic West as Morgan Henderson
- Sienna Miller as Carla Duval
- Celia Imrie as Budgie
- Nick Mohammed as Michael Stefanou
- Phoebe Fox
- James McArdle
- Nina Sosanya
- Pip Torrens
- Archie Renaux
Produced by New Pictures, Observatory Pictures, and in partnership with HBO, War draws comparisons to The Split for its intense legal intrigue and betrayal themes. Both Imrie and Mohammed recently appeared on BBC's Celebrity Traitors, adding timely buzz to their involvement.
Release Details
No exact premiere date has been confirmed, but the series is slated for 2026 on Sky and the streaming service NOW in the UK.