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Dominic West and Sienna Miller Star in HBO’s Legal Drama War

October 2, 2026 3 min read 0 comments

HBO and Sky have premiered their high-stakes legal thriller War, bringing together acclaimed British actors Dominic West and Sienna Miller for a scorched-earth divorce story set against the backdrop of elite London law firms. Created by George Kay-known for his work on Lupin and Hijack-the eight-episode first season focuses on the explosive split between tech titan Morgan Henderson, played by West, and international film star Carla Duval, portrayed by Miller.

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The plot centers on Carla’s legal bid to dissolve their marriage and claim a substantial share of Morgan’s massive fortune, despite a pre-nuptial agreement designed to protect his assets. Matters escalate when Carla presents photographic evidence of Morgan’s infidelity, gathered through a honey trap, which forces both legal teams into aggressive maneuvers. Morgan’s firm strikes back early by serving divorce papers publicly at a movie premiere, setting the tone for a brutal courtroom battle.

Rival Law Firms and Complex Characters

The series pits two powerful London law firms against each other: Cathcarts and Taylor & Byrne. Representing Carla are Serena Byrne and Nicholas Taylor, played by Phoebe Fox and James McArdle, who are partners in both life and business. However, they remain wary of Carla’s aggressive tactics, fearing a negative public perception. Meanwhile, opposing them at Cathcarts are Nina Sosanya as Queen Beatrice “Queen Bea” Ubosi and Pip Torrens as St. John Smallwood.

Adding layers of internal betrayal to the narrative is Johnny Warren, a young and ambitious lawyer newly hired by Carla’s firm. Played by Archie Renaux, Johnny is revealed to be a mole working secretly for Morgan’s legal team, driving much of the story’s intrigue and moral compromises forward.

Production Background and International Release

War has received strong critical acclaim, holding an 83% Certified Fresh rating on Rotten Tomatoes. Demonstrating confidence in the project, HBO and Sky granted the series an early two-season renewal. Production on Season 2 is underway, featuring Marisa Tomei, and is set to shift focus from a high-profile divorce to a complex defamation case stemming from the fallout of the first season.

The first season premiered on October 1, airing weekly on HBO and Max in the United States, alongside international availability on Sky and NOW/WOW across the U.K., Ireland, Italy, Germany, Switzerland, and Austria, as well as on Max in Australia and select global territories.

Cast and Crew Overview

Alongside the main leads, the expansive ensemble cast features notable British talent:

  • Dominic West as Morgan Henderson
  • Sienna Miller as Carla Duval
  • Phoebe Fox as Serena Byrne
  • James McArdle as Nicholas Taylor
  • Nina Sosanya as Beatrice “Queen Bea” Ubosi
  • Pip Torrens as St. John Smallwood
  • Archie Renaux as Jonathan “Johnny” Warren
  • Celia Imrie as Budgie
  • Nick Mohammed as Michael Stefano

With Ben Taylor serving as lead director, War merges the tense pacing of a psychological thriller with the high-society drama of contemporary tabloid scandals, establishing itself as a major prestige television release of the fall season.

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Amjad Fazal

Author at this publication.

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