The drama will follow two of London's most prestigious rival firms - Cathcarts and Taylor & Byrne - as they go head-to-head in the divorce case of the century. Each side is certain they'll win. But as the case spirals and loyalties fracture, reputations are on the line, and everyone's playing to win. This is just the beginning - season one's explosive case is the first in an anthology of headline-making legal battles.
West will play tech titan Morgan Henderson and Miller will play his estranged wife, international film star Carla Duval.
The cast will also feature Phoebe Fox, James McArdle, Nina Sosanya, Pip Torrens and Archie Reneaux.
George Kay (Hijack, Lupin) created the drama. He will executive produce with Willow Grylls, Matt Sandford, Susan Breen, Andrea Dewsbury, Megan Spanjian and director Ben Taylor. New Pictures and Observatory Pictures will produce.
"I am excited to be working with Sky and HBO - two homes for bold, ambitious storytelling - and our brilliant producing team," said Kay. "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."
"We are thrilled to be working with George, Ben, Willow and team on War," added Meghan Lyvers, Executive Director of Original Scripted, Sky. "The show is ambitious and provocative, brimming with unforgettable characters. It challenges the notions of power, identity, and success. We are proud to partner with New Pictures and HBO on this distinctly modern drama."
"We've long admired George Kay's exceptional work and it's a privilege to bring him and his team to HBO for this wild and wicked examination of the brutal battlefield that is divorce," shared Francesca Orsi, Executive Vice President of HBO Programming and Head of HBO Drama Series and Films. "An inspired fusion of realism and satire, viewers are in store for gripping storytelling at its very best."
