The actors that the article refer to is the healthcare workers, those who have experienced this violence. Those who feel that their perogitive to help others (and to do their jobs) is greater than 'offering themselves up' to the people of these tribes who feel that they are doing more harm then good. Another actor is people from the villages who describe what has happened. The discovery of these murdered healthcare workers and their opinions on the Ebola workers- they do not want them near their tribes at all. Outside worldwide coordinators also comment on the tradegies of the death and the affects it has on the treatment of Ebola. The Red Cross is also an actor, their workers were afraid/chased by locals due to wearing "Ebola gear".