Thiago

''He glared at me and the brown skin on his cheeks showed pronounced signs of a rise in temperature indicating anger, embarrassment, and possibly other emotions. I was pretty sure he was just pissed off, though. Then he hesitated and said, “Look, I—I didn’t mean to get you shot. I’m sorry.” If you had meant to get me shot, Thiago, we would be having a different conversation.'' (Network Effect, Chapter 2)

Thiago is the marital partner of Dr. Ayda Mensah’s (unnamed) brother. This makes him Amena’s uncle. Thiago attended university with Tano, one of Mensah’s two marital partners.

Thiago is a linguist, able to distinguish different dialects and variants of human speech, including archaic forms. He is also able to program a language vocabulary translation module. Additionally, he has knowledge of the history of alien remnants and their side effects, and is able to analyze biological samples to look for contamination.

Thiago is an acknowledged optimist about most people, always assuming good intentions and attempting to negotiate rather than fight in cases of conflict. This makes his distrust of Murderbot even more obvious. Thiago seems to believe that Murderbot has emotional leverage over Dr. Mensah and is causing her to be needlessly afraid to make her dependent on it.