9 is Seven's doctor.
They have pale skin, shoulder-length blonde hair and blue eyes, and wear compie-style clothes with high heels.
Dr. 9 seems very cold, and cares for their subject, Seven, in a way that is harsher than the other doctors; whether this is due to testing parameters, 9's personality itself, or Seven's psychic powers as an abnormality, is still up for question.
They are Seven's doctor. 9 treats Seven very coldly and seems detached from their anxiety and distress. At one point, they throw Seven's food down in front of them, much different from the treatment of the other children by their doctors.
- Dr. 9's clearance level is 4, two levels higher than Dr. Xaveria or Dr. Zehra.
- They have direct communication with The Director, which may be part of their privilege as a level 4.
- Like the Level 3 kids, they have a number as their name. The implications of this are unknown.