According to the International Court of Justice, any person through whom an international organization acts is an agent of that organization. However, this definition is too broad. Any participation in the fulfilment of the mission of an international organization does not necessarily make the person an agent of the international organization. After detailing the particularities of the status of international agents, this article considers the issue of accountability for wrongs attributable to them. It recommends in this respect the development of a system of accountability that combines national and international justice responses with priority to the former based on the location of the offence.