Series2026–•1 season
Secret Service
When the enemy is closer than you think, who do you trust?
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.
Created by Tom Bradby
Series cast
Gemma Arterton
Kate Henderson · 5 ep
Rafe Spall
Stuart Henderson · 5 ep
Alexander Terentyev
Sergei Malinski · 5 ep
Roger Allam
Sir Alan Brabazon · 5 ep
Avi Nash
Ravindra Sangvhi · 5 ep
Mark Stanley
Ryan Walker · 5 ep
Alex Kingston
Rose Trewen · 5 ep
Amaka Okafor
Imogen Conrad · 5 ep
Khalid Abdalla
Zak Hussein · 5 ep
Aoife Hinds
Julie Price · 5 ep
Rochenda Sandall
Melissa Morris · 5 ep
Lydia Leonard
Amanda Walker · 5 ep
Steven Elder
Anthony Fletcher · 5 ep
Alma Prelec
Lena Savic · 5 ep
Galaxie Clear
Fiona Henderson · 5 ep
Harley Barton
Gus Henderson · 5 ep
Seasons1
Season 1
2026 · 5 episodes
