Sir Matthew John Rycroft is a British civil servant and diplomat serving as Permanent Under-Secretary of State at the Home Office since 2020,appointed following the resignation of Sir Philip Rutnam. Rycroft previously served as Permanent Secretary at the Department for International Development (DFID) from 2018 to 2020 and as the Permanent Representative to the United Nations in New York from 2015 to 2018.
Sir David Norman Reddaway is a retired British diplomat who was High Commissioner to Canada and Ambassador to Ireland and Turkey.
Sir Dominic Anthony Gerard Asquith is a British career diplomat and former Ambassador to Iraq,Egypt,and Libya. He was First Secretary at the British Embassy in Washington DC. He was most recently the British High Commissioner to the Republic of India.
David George Hamilton Frost,Baron Frost is a former British diplomat,civil servant and politician who served as a Minister of State at the Cabinet Office between March and December 2021. Frost was Chief Negotiator of Task Force Europe from January 2020 until his resignation in December 2021.
Sir David Alexander Warren,KCMG is a British diplomat,serving as HM Ambassador to Japan in the period 2008–2012. He retired from the Foreign and Commonwealth Office in January 2013,and served as chairman of The Japan Society in London from 2013 to 2019.
Sir Simon James Fraser is a British former diplomat who served as the Permanent Under-Secretary of the Foreign and Commonwealth Office from August 2010 to July 2015,having served as Permanent Secretary of the Department for Business,Innovation and Skills from May 2009 to August 2010. Sir Simon is a Trustee of the Patchwork Foundation,founded by Harris Bokhari. Sir Simon is currently Deputy Chairman of Chatham House and serves as Adviser to the Europe Programme. He is also Managing Partner of Flint Global.
Sir Mark Justin Lyall Grant is a former senior British diplomat who was previously the United Kingdom's National Security Adviser and Permanent Representative of the United Kingdom to the United Nations.
Mark Philip Sedwill,Baron 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.
Sir Simon Lawrance Gass is a British civil servant. He chaired the Joint Intelligence Committee from 2019 to 2023 and served as the British Prime Minister's representative on Afghanistan from 2021 to 2022 concurrently. Between 2018 and 2019,he was the Commandant of the Royal College of Defence Studies. During his diplomatic career,he served as British ambassador to Greece and to Iran. In May 2023,it was announced he was stepping down as Chairman of the Joint Intelligence Committee and succeeded by Madeleine Alessandri.
Dame Karen Elizabeth Pierce,Lady Roxburgh,,is a British diplomat who is currently British Ambassador to the United States at the Foreign,Commonwealth and Development Office,and was previously the Permanent Representative of the United Kingdom to the United Nations.
Sir Brian James Proetel Fall is a retired British diplomat who was the UK's Special Representative for the South Caucasus 2002–12.
Sir Timothy Earle Barrow is a British diplomat who served as Permanent Representative of the United Kingdom to the European Union from 2017 to 2020 and as the British Ambassador to the European Union from 2020 to 2021. He currently serves as National Security Adviser.
Antony John Phillipson,is a British diplomat,and as of 2021,British High Commissioner to South Africa. He was High Commissioner to Singapore from 2011 to April 2015,and from 2017 to June 2021 was the British Consul-General in New York and Her Majesty's Trade Commissioner for North America.
Simon Gerard McDonald,Baron McDonald of Salford,is a British former diplomat who was the Permanent Under-Secretary at the Foreign and Commonwealth Office and Head of the Diplomatic Service until September 2020. He was the last professional head of the Foreign &Commonwealth Office before the creation of the Foreign,Commonwealth and Development Office. He has been the Master of Christ's College,Cambridge since September 2022.
Sir Philip Robert Barton is a British diplomat,currently the Permanent Under-Secretary of the Foreign,Commonwealth and Development Office. He was previously British High Commissioner to India;he was High Commissioner to Pakistan from 2014 to 2016.
Sir Thomas Drew is a British diplomat who was the Director General,Defence and Intelligence,at the Foreign,Commonwealth and Development Office and has previously been British High Commissioner to Pakistan.
Dame Sarah MacIntosh is a British diplomat who is the Deputy National Security Adviser for International Affairs. She previously served as High Commissioner to Sierra Leone,Ambassador to Liberia and British Ambassador to NATO from 2017 to 2022.
Jan Thompson is a British diplomat,who since April 2023 has served as the British Ambassador to Norway. She served previously as British Ambassador to the Czech Republic from 2013 to 2017,and as British Deputy High Commissioner to India from 2018 to 2023.
Joanna Louise Roper,Lady Drew,is a British diplomat who has served as the British Ambassador to the Netherlands and Permanent Representative of the United Kingdom to the Organisation for the Prohibition of Chemical Weapons (OPCW) in The Hague since 2020.
Hugh Stephen Murray Elliott is a British diplomat,currently serving as the Ambassador of the United Kingdom to Spain and non-resident Ambassador Extraordinary to Andorra since 2019. Prior to this,he was Director for Communications at the Department for Exiting the European Union.
