Series synopsis
Secret Service is a British drama war & politics crime television series that premiered on ITV1 on April 27, 2026. It was created by Tom Bradby. It stars Gemma Arterton, Rafe Spall, Alexander Terentyev and Roger Allam.
A British intelligence officer Kate Henderson races against time to uncover a UK politician's potential ties with the Kremlin, risking her reputation and family, as a murder and election loom.
Premise
A British intelligence officer Kate Henderson races against time to uncover a UK politician's potential ties with the Kremlin, risking her reputation and family, as a murder and election loom.
Premise: When the enemy is closer than you think, who do you trust?
Cast and characters
Leading cast
- Gemma Arterton as Kate Henderson
- Rafe Spall as Stuart Henderson
- Alexander Terentyev as Sergei Malinski
- Roger Allam as Sir Alan Brabazon
- Avi Nash as Ravindra Sangvhi
- Mark Stanley as Ryan Walker
- Alex Kingston as Rose Trewen
- Amaka Okafor as Imogen Conrad
Supporting cast
- Khalid Abdalla as Zak Hussein
- Aoife Hinds as Julie Price
- Rochenda Sandall as Melissa Morris
- Lydia Leonard as Amanda Walker
- Steven Elder as Anthony Fletcher
- Alma Prelec as Lena Savic
- Galaxie Clear as Fiona Henderson
- Harley Barton as Gus Henderson
Episodes
This series spans 1 season with 5 episodes.
| Season | Episodes | First aired | Last aired |
|---|---|---|---|
| Season 1 | 5 | April 27, 2026 | May 5, 2026 |
| Episode | Title | Air date |
|---|---|---|
| 1 |
Episode 1 An MI6 agent learns that there is a Russian asset in the UK Cabinet. |
April 27, 2026 |
| 2 |
Episode 2 Kate suspects that her agent is in danger and, defying orders, prepares to rescue her. |
April 28, 2026 |
| 3 |
Episode 3 Kate's bold rescue mission in Malta backfires and she draws flak from all sides. |
May 3, 2026 |
Production
Release
| Original network/platform | ITV1 |
|---|---|
| First aired | April 27, 2026 |
| Last aired | May 5, 2026 |
| Runtime | 47 minutes |
| Status | continue |