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Secret Service(2026)

When the enemy is closer than you think, who do you trust?

6.61 season5 episodesReturning Series

DramaWar & PoliticsCrime

Overview

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.

First aired:: 2026-04-27
Last aired:: 2026-05-05
Producers:: Andrea Calderwood, Gail Egan, Chloe Sizer

Trailer

Cast

Gemma Arterton

Gemma Arterton

Kate Henderson

Rafe Spall

Rafe Spall

Stuart Henderson

Alexander Terentyev

Alexander Terentyev

Sergei Malinski

Roger Allam

Roger Allam

Sir Alan Brabazon

Avi Nash

Avi Nash

Ravindra Sangvhi

Mark Stanley

Mark Stanley

Ryan Walker

Alex Kingston

Alex Kingston

Rose Trewen

Amaka Okafor

Amaka Okafor

Imogen Conrad

Khalid Abdalla

Khalid Abdalla

Zak Hussein

Aoife Hinds

Aoife Hinds

Julie Price

Rochenda Sandall

Rochenda Sandall

Melissa Morris

Lydia Leonard

Lydia Leonard

Amanda Walker