TV The War Between the Land and the Sea The War Between the Land and the Sea 7.3/10 by 21 users When a fearsome and ancient species emerges from the ocean, dramatically revealing themselves to humanity, an international crisis is triggered. With the entire population at risk, UNIT step into action as the land and sea wage war. Details Casts Posters Images Title The War Between the Land and the Sea Alternative Titles First Air Date 2025-12-07 Last Air Date 2025-12-07 Number of Episodes 5 Number of Seasons 1 Genres Sci-Fi & Fantasy, Drama, Networks BBC One, Casts Russell Tovey, Gugu Mbatha-Raw, Jemma Redgrave, Alexander Devrient, Ruth Madeley, Colin McFarlane, Waseem Mirza, Manpreet Bachu, Waleed Hammad, Vincent Franklin, Adrian Lukis Plot Keywords silent film, Barclay Pierre-Dupont Russell Tovey Salt Gugu Mbatha-Raw Kate Lethbridge-Stewart Jemma Redgrave Colonel Christofer Ibrahim Alexander Devrient Shirley Bingham Ruth Madeley General Austin Pierce Colin McFarlane Waseem Mirza Manpreet Bachu Colonel Tariq Hashim Waleed Hammad Prime Minister Harry Shaw Vincent Franklin Sir Jonathan Hynes Adrian Lukis Homo Aqua Gethin Alderman Homo Aqua Charles Sandford Kirby Pierre-Dupont Cat Gannon Barbara Pierre-Dupont Ann Akinjirin Sergeant Hana Chakri Francesca Corney Captain Louise Mackie Hannah Donaldson Min Tso Mei Mac Steve Chesney George Robinson BBC Newsreader Jennifer Jones Chinese Newsreader Edward Wu Trinity Wells Lachele Carl General Oscar Gunsberg Stewart Alexander General Dominique Dussolier Barbara Probst Felix Gladstock Tim Wallers