The Undeclared War Cast: Full List of Actors & Characters
Explore The Undeclared War (2022) cast, roles, and key details from this gripping drama-thriller in one easy, regularly updated guide.
If you’re searching for The Undeclared War cast, you’re probably after a quick, reliable guide to the people behind this tense political thriller. This page focuses on The Undeclared War (2022), the drama-thriller that follows a high-stakes cybersecurity crisis and the characters drawn into it. Whether you want to identify familiar faces, check roles, or refresh your memory before a rewatch, you’ll find the key details here. Use this page as a simple starting point for the series and its standout performances.
About the Show
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.
Full Cast
- Simon Pegg
- Hannah Khalique-Brown
- German Segal
- Maisie Richardson-Sellers
- Edward Holcroft
- Adrian Lester
- Tom McKay
- Joss Porter
Created By
- Peter Kosminsky
- Paul McGuigan
Where to Watch
You can stream The Undeclared War on: Peacock Premium
More Information
The Undeclared War (2022) stands out because its performances support the tension at every turn, making the ensemble just as important as the plot. This page is built to help you quickly spot the main players, connect names to faces, and revisit the series with better context. If you’re comparing credits or planning a watch, it gives you a clean, focused reference without the clutter. Bookmark it and come back when you need a fast refresher, because the page is updated regularly to keep the information current.
Frequently Asked Questions
Where can I watch The Undeclared War?
The Undeclared War is currently streaming on Peacock Premium.
Is The Undeclared War worth watching?
The Undeclared War holds a 7/10 audience rating and is tagged as drama and thriller.
Who stars in The Undeclared War?
The cast includes Simon Pegg, Hannah Khalique-Brown, German Segal, Maisie Richardson-Sellers, Edward Holcroft.
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Last updated: September 4, 2026