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.

Martin Alexander Baillie Reynolds is a British civil servant who served as Principal Private Secretary to Prime Minister Boris Johnson from 2019 to 2022. Reynolds previously served as British Ambassador to Libya under Prime Minister Theresa May and as the principal private secretary to Johnson when he served as Foreign Secretary in May's government.