Acting
Mark Sedwill
Born
1964-10-21 (62)
Place of birth
Ealing, London, England, UK
Known for
Acting
Credits
2 titles
Mark Sedwill is a British diplomat and senior civil servant who served as Cabinet Secretary and Head of the Home Civil Service to Prime Ministers Theresa May and Boris Johnson from 2018 to 2020. He also served as the United Kingdom National Security Adviser from 2017 to 2020. He was previously the United Kingdom's Ambassador to Afghanistan from 2009 to 2010 and the NATO Senior Civilian Representative in Afghanistan in 2010. He was the Permanent Under-Secretary of State at the Home Office from February 2013 to April 2017.
Known for
2.8The big names behind the big stories. Laura Kuenssberg talks to those making the news, inside and outside politics.
Sunday with Laura Kuenssberg
2022
6.3The story begins in March 2018, when former Russian intelligence officer Sergei Skripal and his daughter Yulia collapse on a park bench in Salisbury, England – a quaint, historic city where nothing normally happens. But what starts as a local incident explodes into a geopolitical crisis, which exposes the covert espionage war being raged between Russia and the West. A cinematic portrait of loyalty and betrayal and a story that resonates amid ongoing tensions with Russia, the documentary explores the collision of two men: Sergei Skripal and Vladimir Putin, the dictator determined to settle an old score by sending assassins to Salisbury armed with the deadly nerve agent Novichok.
The Salisbury Poisonings: A Spy Next Door
2026