Pierre Vimont is a French diplomat who served as the Executive Secretary-General of the European External Action Service (EEAS) from 2010 until 2015. His current rank in the French civil service is "Ambassadeur de France", which is properly not a rank but a "dignity" bestowed upon a diplomat for life. He is a senior fellow at Carnegie Europe.

Alain Le Roy is a French diplomat who served as Secretary General of the European External Action Service (EEAS) between 1 March 2015 and 31 August 2016. In this capacity, he was in charge of around 3,400 staff and around 140 delegations in non-EU countries. On 16 June 2016 he announced he would be resigning effective 1 September 2016, being replaced by Helga Schmid, who has been political director of the EEAS and as such, been involved in the Iran nuclear negotiations.