David Quarrey

He was formerly acting National Security Adviser, having taken over the role while David Frost continued as the United Kingdom's Chief Negotiator to the European Union during the Brexit negotiations.

[4] Quarrey, who joined the Foreign and Commonwealth Office in 1994,[5][6] previously directed its Near East and North Africa Department.

He has also served as a British diplomat in Harare, in Delhi and at the United Nations in New York.

When Tony Blair was British prime minister, he was his private secretary for two years.

[12] In 2021, he tested positive for the Indian variant of COVID-19 after returning from a government business trip to India.