Herman Van Rompuy, President of the European Council
Chair: Dr Robin Niblett, Director, Chatham House
Ian Bremmer, President and Co-Founder, Eurasia Group; Author, Every Nation For Itself: Winners and Losers in a G-Zero World
Ahmed Rashid, Author, Pakistan on the Brink
Chair: Xenia Dormandy, Senior Fellow, US International Role, Americas, Chatham House
Dr Jens Weidmann, President of Deutsche Bundesbank
Chair: Stuart Popham QC (Hon), Vice Chairman EMEA Banking, Citigroup; Council, Chatham House
Parag Khanna, Senior Research Fellow at the New America Foundation, Senior Fellow at the European Council on Foreign Relations, and Visiting Fellow at LSE IDEAS
Chair: Bernice Lee, Research Director, Energy, Environment and Resource Governance, Chatham House
James Nixey, Manager and Research Fellow, Russia and Eurasia Programme, Chatham House
Dr Lilia Shevtsova, Associate Fellow, Russia and Eurasia Programme, Chatham House
Sir Andrew Wood, Associate Fellow, Russia and Eurasia Programme, Chatham House
Professor Philip Hanson, Associate Fellow, Russia and Eurasia Programme, Chatham House
Chair: Alan Philps, Editor, The World Today, Chatham House
Yvo de Boer, Special Global Advisor on Climate Change and Sustainability, KPMG; and former Executive Secretary, United Nations Framework Convention on Climate Change (2006-2010)
Chair: Michael Jacobs, Visiting Professor, Grantham Research Institute on Climate Change and the Environment, London School of Economics; and former Special Adviser to UK Prime Minister (2004-10)
HE Hina Rabbani Khar, Federal Minister for Foreign Affairs, Pakistan
Chair: Dr Robin Niblett, Director, Chatham House
Rt Hon William Hague MP, Foreign Secretary, UK
Henry Bellingham MP, Minister for Africa, Foreign and Commonwealth Office, UK
Chair: Dr Robin Niblett, Director, Chatham House
Wadah Khanfar, Director General, Al Jazeera network (2003-11)
Chair: Jane Kinninmont, Senior Research Fellow, Middle East and North Africa Programme, Chatham House
Daniel Ayalon MK, Deputy Minister for Foreign Affairs, Israel
Chair: Dr Robin Niblett, Director, Chatham House
Tawakkol Karman, Nobel Prize Laureate 2011, Journalist, Activist and Founder of Women Journalists Without Chains
Chair: Ginny Hill, Associate Fellow, Middle East and North Africa Programme, Chatham House
Vítor Gaspar, Minister of Finance, Portugal
Chair: Dr Robin Niblett, Director, Chatham House
Professor Muhammad Yunus, Founder, Grameen Bank and Nobel Laureate (2006)
Chair: Rt Hon Lord Boateng, House of Lords
Allard Castelein, Vice President, Environment, Royal Dutch Shell
Thorleif Enger, Chairman, Agrinos
Bernice Lee, Research Director, Energy, Environment and Resource Governance, Chatham House
Michael Liebreich, Chief Executive, Bloomberg New Energy Finance
Jeremy Oppenheim, Director, McKinsey & Company
Alan Seatter, Deputy Director-General of Environment, European Commission
Chair: Charles Emmerson, Senior Research Fellow, Energy, Environment and Development Programme, Chatham House
Rt Hon Sir John Major KG CH, UK Prime Minister (1990-97)
Chair: Dr Robin Niblett, Director, Chatham House
Sir Rodric Braithwaite GCMG, British Ambassador to the Soviet Union and subsequently to the Russian Federation (1988-92) and Chairman, UK Joint Intelligence Committee (1992-93)
Ambassador Jack Matlock, US Ambassador to the Soviet Union (1987-91) and Special Assistant to the President for National Security Affairs (1983-86)
Chair: John Lloyd, Contributing Editor, Financial Times and Director of Journalism, Reuters Institute for the Study of Journalism, University of Oxford
Rt Hon David Miliband MP, UK Foreign Secretary 2007-10
Senator George Mitchell, US Special Envoy for Middle East Peace, 2009-May 2011
Chair: Dr Robin Niblett, Director, Chatham House
HE Dr Wolfgang Schäuble, Federal Minister of Finance, Germany
Chair: Dr Robin Niblett, Director, Chatham House