Ratthi

"This is why Ratthi is my friend." (Murderbot, Network Effect)

Overview
Ratthi is the PreservationAux team biologist. He has a lively sense of humor and tends to be expressive and emotional. He is not apparently married, though Murderbot observes that he “has an unrequited thing for Pin-Lee.” In Network Effect (Chapter 10) Murderbot noted that Ratthi “had a lot of relationships with all genders of humans and augmented humans and he and they all seemed very happy about it.”

While Ratthi is initially the first human to try to get Murderbot to talk about its feelings (to Murderbot’s intense discomfort), he is later on one of the most accepting of Murderbot on its own terms. Murderbot notes that Ratthi listens to it carefully, and in return, Murderbot seems to be more comfortable with Ratthi than with anyone else other than Dr. Mensah.

Ratthi has never completed weapons training and hates getting shot at.

In Network Effect, Ratthi is capable of rendering Murderbot first-aid.