HBO's New Drama 'War' Explores Elite Divorce, Billionaires, and Tabloid Chaos

HBO and Max's new eight-episode drama series War takes viewers inside the explosive, high-profile divorce of a tech billionaire and an A-list actress in present-day London. Variety, USA Today, and other outlets reported that the series launched on October 1, 2026, with remaining episodes rolling out weekly on Thursdays through November 19, 2026. Billed by USA Today as the spiritual successor to Succession, the show dives into the colliding worlds of elite London law firms Cathcarts & Sons and Taylor & Byrne.

Who stars in 'War'?

Dominic West stars as tech billionaire Morgan Henderson, while Sienna Miller plays A-list actress Carla Duval. The ensemble cast also includes Phoebe Fox as Serena Byrne and James McArdle as Nicholas Taylor, the married law partners running Taylor & Byrne. Nina Sosanya plays Beatrice “Queen Bea” Ubos (spelled Ubosi in some reports) alongside Pip Torrens as St. John Smallwood at Cathcarts & Sons. Additional cast members features Archie Renaux as driven young lawyer Jonathan “Johnny” Warren, Aran Murphy as Gabriel (Carla and Morgan’s 16-year-old son), and Rose Williams as Flora, alongside Celia Imrie, Nick Mohammed, Emma Laird, Archie Panjabi, Adrian Scarborough, Shaheen Jafargholi, Akiya Henry, Honor Swinton Byrne, Miles Jupp, Kartanya Maynard, Alexandra Mardell, Dylan Edwards, Mark Quartley, and Steve Furst.

Who is behind the scenes of the series?

War was created, written, and executive produced by George Kay, who previously created Lupin and Hijack. Ben Taylor serves as the lead director, and Laurie Borg is the series producer. Executive producers include Willow Grylls and Matt Sandford for New Pictures, alongside Susan Breen, Ben Taylor, Andrea Dewsbury, and Megan Spanjian for Sky. The show is co-produced by New Pictures, a Banijay company, and Observatory Pictures, in association with Sky and HBO.

What inspired the story?

Creator George Kay noted that the show was partly inspired after he met a woman celebrating the end of a bitter four-year divorce battle. In the series opener, a dramatic scene involves divorce papers being delivered on a red carpet. Kay explained that this moment nods to real-life events, such as when Olivia Wilde was handed custody papers from ex Jason Sudeikis onstage at CinemaCon in 2022, though he clarified the show is not specifically based on that incident.

Both lead actors drew on their own brushes with public scrutiny for their roles. Sienna Miller, whose past high-profile relationship with Jude Law drew intense 2000s tabloid attention, remarked to USA Today about playing Carla: "I don't feel necessarily that I need to spend more time exploring press intrusion and paparazzi... I think I've had enough for a lifetime of that in my own world. But I did enjoy playing Carla in those circumstances." Dominic West, who faced heavy media scrutiny around 2020 and previously played Prince Charles in Seasons 5 and 6 of The Crown, told USA Today, "It was fun seeing it all through someone else’s eyes, through a billionaire businessman’s eyes... There's a schadenfreude in watching a billionaire undergoing that sort of scrutiny that actors get."

When do new episodes air and what comes next?

Remaining Season 1 episodes air weekly on Thursdays on HBO and Max through November 19, 2026, though Rotten Tomatoes listed an episode date of October 8, 2026. The first season holds an 87% Tomatometer score across 31 reviews on Rotten Tomatoes. Looking ahead, HBO has already greenlit Season 2, which will feature a cast including Marisa Tomei, Kelly Macdonald, David Harewood, and Richard Schiff focusing on an explosive defamation case between Cathcarts & Sons and Taylor & Byrne.