Lindsay Redvers Mark Seymour Croisdale-Appleby is a British diplomat and Head of the UK Mission to the European Union. Appointed in January 2021, he formally presented his credentials to the President of the European Commission on 29 July 2021. He was Ambassador to Colombia from 2012 to 2015.

Matthew Steven Gould is a British former civil servant and diplomat who is the Chief Executive Officer of international science-led conservation charity ZSL. He was previously National Director for Digital Transformation in NHS England (2019–2022), Director General for Digital and Media Policy in the Department for Digital, Culture, Media and Sport (2015–19) and Ambassador to Israel (2010–15).