Secret Service: Story, Cast and Series Facts

Story and premise

Secret Service follows senior MI6 officer, Kate Henderson, whose life must seem pretty ordinary to those who don't know her well, as she's happily married with two teenagers and a job in the civil service. 

However, Kate's real job is heading up the Russia Desk of the Secret Intelligence Service. When her undercover operations reveal alarming evidence that a senior UK politician is possibly a high-level Russian asset, Kate is in a race against time to uncover their identity.

Then a young woman is brutally murdered, throwing Kate and her team into the spotlight. With blood on her hands, her reputation to uphold, her family hanging by a thread, and an election looming, Kate is quickly running out of options and the clock is ticking….

Series details

• Title: Secret Service
• Format: Scripted
• Language: English
• Genres: Drama, Espionage
• Premiere date: 2026-04-27
• Status in TVmaze: To Be Determined
• Web channel listed by TVmaze: ITVX
• Network country: United Kingdom
• Typical episode runtime: 46 minutes
• TVmaze community rating: 7.4/10
• TVMaze ID: 77417
• IMDb ID: tt32477632
• TVDB ID: 451314

Cast and credited roles

• Gemma Arterton — Kate Henderson
• Rafe Spall — Stuart Henderson
• Mark Stanley — Ryan Walker
• Amaka Okafor — Imogen Conrad
• Aoife Hinds — Julie Price
• Rochenda Sandall — Melissa Morris
• Galaxie Clear — Fiona Henderson
• Khalid Abdalla — Zak Hussein
• Alex Kingston — Rose Trewen
• Avi Nash — Ravindra "Rav" Sangvhi
• Harley Barton — Gus Henderson
• Roger Allam — Sir Alan Brabazon

Seasons in the TVmaze catalogue

• Season 1: premiered 2026-04-27; final listed air date 2026-04-27; episode order: 5.

Source and licence

Adapted from Secret Service on TVmaze. The synopsis is reproduced as plain text; catalogue facts, cast and season records are selected and reformatted. This adapted text is available under CC BY-SA 4.0, following the TVmaze API licence. Network and web-channel credits identify the service listed in this source; they do not establish current streaming availability.