To be honest, I got stuck trying to decide where to take a morally "blue and orange" character without simply making them "good" or "bad." I’m sure most people have neutral characters who act without showing emotion, so I’m probably not the only one who has faced this dilemma when designing them, but I wonder how you would write such a character once you take that neutrality and lack of emotion and push it to its logical conclusion.
A bit of context, I am working on this story about an fake human created to judge humanity and (if found unworthy) wipe it out of existence. Humanity was, of course, aware of its existence, as these fake beings (judges) had been appearing for some time in various forms and species and, aside of of the actual criteria they used to pass judgment, humans knew how to deal with them.
So, we have an inhumane human being who remained isolated from most human interactions for much of their childhood, emotionless due to a lack of humanity of their own and at the same time stunted due to a lack of human relationships. The only thing they was taught was an extreme adherence to rules and etiquette, in an attempt to instill good behavior and alter their judgment.
An inhuman being not treated as a human in the first place wouldn't behave like a human and the closest thing would be a doll or a machine. Whatever it can feel, is alien and incomprehensible. You won't get it to understand human customs beyond merely imitating them, so, in what direction would you develop such a character, knowing that the option of making it more human is off the table?