Sigmar Gabriel, Chairman, Atlantic Brüke & f. Vice Chancellor and Foreign Minister of Germany

Mary McAleese, f. President of Ireland

Enrico Letta, President of the Jacques Delors Institute and f. Prime Minister of Italy
Olusegun Obasanjo, former President of the Federal Republic of Nigeria and of African Union

Margot Wallstöm, Deputy Prime Minister and Foreign Minister of Sweden (2014-2019)

Meglena Kuneva, EU Ambassador to the Council of Europe and f. Deputy PM of Bulgaria

Frank Vandenbrouck, Professor at the University of Amsterdam and f. Deputy Prime Minister of Belgium

Ivan Krastev, Chairman of the Centre for Liberal Strategies

Sonja Licht, President, Belgrade Security Forum

Kevin Featherstone, Eleftherios Venizelos Professor in Contemporary Greek Studies and Professor in European Politics, LSE

Xavier Prats Monne, The Global Special Advisor, Teach for All & f. DG of the European Commission

Ulrike Guerot, Professor and head of the Department for European Politics and the Study of Democracy at Danube-University Krems

Sandro Gozi, MEP and f. Undersecretary for European Affairs of Italy

Gilles Merritt, Founder and Chair, Friends of Europe think tank

Prof. Sir Chris Pissarides, Nobel Economics Laureate 2010