Doctor Moira Vahlen: 
The scientist in charge of XCOM's research division. She expresses an unusual enthusiasm towards adapting alien technology to forward human scientific advancements. All aliens captured alien are to be delivered to her lab per the doctor's request. Dr. Vahlen is also a member of the commander's advisors.
Doctor Raymond Shen: 
Dr. Shen is the head engineer of XCOM's development team and the creator of the A.I. matrix in each base. He is one of the more senior members of XCOM with decades of experiences and is world renowned. His views on the extent in which XCOM should utilize alien technology often conflicts with Dr. Vahlen. Dr. Shen also advises the commander on alien materials and components.
Central Officer Bradford:
Bradford is the second-in-command in the XCOM project and is in charge of the organization's communications across the several bases and organization on the more specific level. All Base Commanders report to Bradford. He is dedicated to ending the alien menace and helps the commander with battle strategy.
Spokeman:
A mysterious figure that represents the council of nations responsible for funding the XCOM Project. All council concerns and request will be voiced through him as well as a monthly report on the organization's effectiveness as a whole.
XCOM Commander Martin Anderson:
The commander is the head of the XCOM project and responsible for all major decisions including research and strategy. A veteran of conflict in the middle-east, Commander Anderson was selected for his flawless record and comparatively young age. He often keeps to himself when not over-seeing missions but is incredibly charismatic and intelligent.