The Secret Service TV show from ITV presents a fantastic blend of British and global celebrities. The actress Gemma Arterton is playing the role of Kate Henderson, an influential member of the MI6, who is exploring the involvement of the Russians in the British government. The scenes change from offices of intelligence services, election campaigns, family houses and abroad to form a mysterious thriller. Many of the characters in the show are influential people, have their own secrets or connections with Russia. This guide tells you about the cast members and their roles, number of episodes, where to watch the show and current status of Season 2.
What Is the Secret Service TV Series 2026 About?
The Secret Service TV series 2026 is a British political thriller based on Tom Bradby’s novel. It combines espionage, government rivalry, family pressure and foreign interference.
The story follows Kate Henderson, the new head of the MI6 Russia Desk. An overseas source gives her evidence suggesting that Russia may have placed an agent close to the centre of British power.
Kate must confirm whether the information is genuine. She must also protect her source, investigate senior politicians and decide whether someone inside MI6 is helping the enemy.
Secret Service 2026 Cast and Season 1 Characters
The Secret Service 2026 cast includes intelligence officers, politicians, advisers, family members and Russian operatives. Gemma Arterton leads the ensemble, but many supporting characters influence the investigation.
The main Season 1 actors and characters are:
- Gemma Arterton as Kate Henderson
- Rafe Spall as Stuart Henderson
- Mark Stanley as Ryan Walker
- Amaka Okafor as Imogen Conrad
- Avi Nash as Ravindra “Rav” Sanghvi
- Aoife Hinds as Julie Price
- Khalid Abdalla as Zak Hussein
- Roger Allam as Sir Alan Brabazon
- Alex Kingston as Rose Trewen
- Rochenda Sandall as Melissa Morris
- Lydia Leonard as Amanda Walker
- Steven Elder as Prime Minister Anthony Fletcher
- Alma Prelec as Lena
- Galaxie Clear as Fiona Henderson
- Harley Barton as Gus Henderson
- Samuel Anderson as Harry Conrad
- Ben Lloyd-Hughes as Joshua
- Paul Clayton as Geoff Walker
- Juris Žagars as Lev Amatov
- Miglen Mirtchev as Igor Borodin
- Michael Tcherepashenets as Mikhail
- Oleg Levin as Kyril
- Alexander Terentyev as Sergei
- Lana Vlady as Irina
Susanna Reid, Ed Balls, Robert Peston and Tom Bradby also appear as themselves. Their appearances make the fictional political campaign feel closer to real British television coverage.
Gemma Arterton and the Main MI6 Team
Gemma Arterton plays Kate Henderson, the head of the MI6 Russia Desk. Kate manages secret sources, studies intelligence and makes decisions that may place lives at risk.
Avi Nash plays Rav Sanghvi, Kate’s deputy. Aoife Hinds plays Julie Price, another officer who works closely with Kate and becomes concerned about Lena, an MI6 source based in Malta.
The senior MI6 team includes Khalid Abdalla as Zak Hussein, Roger Allam as Sir Alan Brabazon and Alex Kingston as Rose Trewen. Zak is Kate’s superior, Sir Alan leads the service, and Rose is responsible for security.
Political, Family and International Characters
Rafe Spall plays Stuart Henderson, Kate’s husband. He works as chief special adviser to Home Secretary Imogen Conrad, creating tension between Kate’s investigation and Stuart’s political career.
Mark Stanley plays Foreign Secretary Ryan Walker. Amaka Okafor plays Imogen Conrad, Ryan’s main political rival. Rochenda Sandall plays Ryan’s adviser, Melissa Morris, while Lydia Leonard plays his wife, Amanda.
Viewers searching for Igor in the Secret Service are looking for Miglen Mirtchev. He plays Igor Borodin, a senior Russian intelligence figure whose Malta villa becomes important to Kate’s operation.
Secret Service Episodes and Where to Watch
The Secret Service television show episodes tell one continuing political mystery. Season 1 contains five episodes, and each instalment develops the same central investigation.
For viewers asking how many episodes are in the series, the confirmed answer is five:
- Episode 1: Kate receives evidence about a possible Russian asset.
- Episode 2: She fears that her source is in danger.
- Episode 3: The operation creates serious consequences.
- Episode 4: The threat becomes personal for Kate.
- Episode 5: Kate prepares a final operation to expose the truth.
People searching for Secret Service TV series 2026 where to watch can stream the complete first season on ITVX in the UK. The drama was also shown on ITV1, while international availability depends on local streaming rights.
Secret Service Season 2 Cast and Renewal Status
There is no officially confirmed Secret Service Season 2 cast. ITV has not announced a renewal, filming date, trailer or release schedule for another series.
A second season remains possible because Tom Bradby wrote more Kate Henderson novels. Double Agent and Triple Cross could provide material for future television stories.
Gemma Arterton would be the most likely actor to return because Kate remains the central character. However, no returning performer should be treated as confirmed until ITV makes an official announcement.
Why the Ensemble Works So Well
The actors make the characters feel believable rather than obviously innocent or guilty. Most people have ambitions, financial concerns, private relationships or professional secrets.
Gemma Arterton provides a strong centre. Rafe Spall adds emotional tension, while Mark Stanley and Amaka Okafor create convincing political rivals.
Roger Allam, Alex Kingston and Khalid Abdalla bring authority to the MI6 scenes. The supporting cast also helps the political and international storylines feel detailed.
Frequently Asked Questions
Who is included in the cast of secret service television show the Secret Service television show?
Gemma Arterton leads the series as Kate Henderson. The main cast also includes Rafe Spall, Mark Stanley, Amaka Okafor, Roger Allam, Alex Kingston, Khalid Abdalla, Avi Nash and Aoife Hinds.
Who plays Kate Henderson in Secret Service?
Gemma Arterton plays Kate Henderson, the new head of the MI6 Russia Desk. She investigates evidence of possible Russian influence within the British government.
Who plays Stuart Henderson in the series?
Rafe Spall plays Stuart Henderson, Kate’s husband. He works as the chief special adviser to Home Secretary Imogen Conrad.
Who plays Igor Borodin in Secret Service?
Miglen Mirtchev plays Igor Borodin. He is a senior Russian intelligence figure connected to the important operation in Malta.
How many episodes are in Secret Service Season 1?
The first season contains five episodes. Each episode continues the same political and espionage storyline, so viewers should watch them in order.
Conclusion
The actors playing the roles in Secret Service make the ITV show very interesting. Gemma Arterton gives a strong leading role as Kate Henderson; other supporting actors, such as Rafe Spall, Mark Stanley, and Amaka Okafor and their colleagues, make the political and family plots even more intriguing. The use of five episodes allows for a compact plot, but the combination of MI6 agents, advisers, family members, and Russians ensures a good dose of suspense throughout the series. Despite the fact that there are a lot of characters, all the main actors contribute to the core investigation.
