Dr Sinead Walsh served as Ireland's ambassador to Sierra Leone and Liberia at the height of the Ebola epidemic, whilst also serving as the Head of Mission for Irish Aid. She worked for Concern Worldwide and Human Rights Watch in countries across the globe before joining Ireland's Department of Foreign Affairs and Trade in 2009. In 2016-17 she was a senior visiting fellow at the Harvard Humanitarian Initiative.
Dr Oliver Johnson OBE was Country Director for King's Sierra Leone Partnership, where he played a key role in the response to the Ebola epidemic. He had previously worked as Director of Strategy & Teaching Fellow at the King's Centre for Global Health and as Policy Director for the UK Parliament's All-Party Parliamentary Group on Global Health. He is currently a visiting lecturer at King's College London.