The Undeclared War
War & PoliticsDramaSci-Fi & Fantasy
In the post-pandemic world of 2024 during an upcoming British general election involving the UK’s first Black Conservative prime minister, a leading team of analysts at the heart of the UK’s NSA-style spy agency GCHQ attempt to ward off a cyber-attack on the country’s electoral system.
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The Undeclared War | Official Trailer | Peacock Original
Trailer
Cast
Hannah Khalique-Brown
Saara Parvan
Simon Pegg
Danny Patrick
Maisie Richardson-Sellers
Kathy Freeman
Adrian Lester
PM Andrew Makinde
Edward Holcroft
James Cox
Alex Jennings
David Neal
Hattie Morahan
Elizabeth Kahn
Ed Stoppard
Richard Marston
Joss Porter
Phil D
Tom McKay
Max K
German Segal
Vadim Trusov
Mark Rylance
John Yeabsley
Gavi Singh Chera
Sajid Parvin
Jamie Muscato
Finn
Andrew Rothney
Rich T
Yasmin Wilde
Bushra Yousafzai
Julian Harries
National Security Advisor
Tinatin Dalakishvili
Marina Veselova
Julie Barclay
Sally J
Alfie Friedman
Gabriel Davies
Episodes
Ended
1. Episode 1
Jul 21, 2026 1.0
2. Episode 2
Jul 22, 2026 1.0
3. Episode 3
Jul 28, 2026 1.0
4. Episode 4
Jul 29, 2026 1.0
5. Episode 5
Aug 4, 2026 1.0
6. Episode 6
Aug 5, 2026 1.0
Watch order
2 seasons — watch them in this order for the full story.
1Series 1
2022 · 6 ep · ★ 2.4
2Series 2
2026 · 6 ep · ★ 1.0
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