(Since each member of Nathaniel's retinue is a member of an Inquisition, it makes sense to me that they would have a philosophy they would lean towards, though not being actual Inquisitors they can't actually act on their philosophies.)
Byzantium Inquisitorial Records
Name: Amara Contee
Age: 42
Ordo: Xenos
Rank: Chirurgeon
Homeworld: Rumaliza
Social Origin: Nobility
Classification: Paradise World-Safari's and hunting trips for visiting Imperial officials and merchants.
Expertise: Medical
Assignment Level: Rho
Specialties: Vaccinations, Battlefield Medical Care, Poisons & Toxins
Combat Proficiencies: Primary support, laspistol, syringes filled with poisons and toxins
Philosophy: Puritan/Amalathian
Reputation: Well respected for her medical expertise and work on creating defenses for humans against Xenos based bacteria and viruses.
Operational Methods: Primarily concerns herself with patching up her retinue and Stormtroopers, when faced with a menace she will quickly inject her choice of poison or toxin into her opponent, preferably without them realizing it.
Physical Description: Standing at 5'10 she is a mature looking woman. She has short black hair and dark brown eyes. In the field she wears carapace armor and carries several satchels on her filled with her equipment. When not in the field she wears black pants, a shirt, and a long white lab coat.
Bio: Born into the nobility of the pleasure world of Rumaliza she was sent to study with Officio Medicae by her family. Upon her return she had discovered that a xenos parasite had infested her planets population, this parasite being a species that alters its host into a new and alien form. Desperate to save her people from being hunted to extinction, she began a search for a cure. The answer came with the arrival of Inquisitor Nathaniel Clark, who not only managed to explain the nature of the parasite, and reveal the party responsible for the introduction of the parasite to the planetary population. Once the menace was purged, the party responsible punished, and those unfortunates too late to save given the Emperor's Mercy, she officially joined his retinue and has performed admirably since.
Personality: At first appearance she is a stern and serious woman, she does takes an almost malicious glee in operating on her patients that tends to unnerve them. She nonetheless has a very compassionate nature, though her bedside manners are terrible. Being the oldest woman in the retinue, she takes the role of the maternal figure for the younger members.
Grandmaster Agatha's personal Inquisitorial Blackship, the Gengar, was about ready to depart for Terra and Galatea was ready to board. She starts making her way to the ship when she sees a young woman, no more than 16 years old run up holding a sealed scroll.
"Thank goodness I made it; I need to get this to the Ordo Sicarius on Terra."
"Why don't you just send an astropathic message to them?" Galatea asks.
"A document this important, that requires the approval of 2/3's of the High Lords of Terra, can't be sent via astropathic message. My names Tabitha Jones by the way, I am the acolyte of Grandmaster Agatha Crowley of the Byzantine Conclave."
"I am Galatea of the Mechanatites."
"Of course, the Grandmaster told me that she would be sending you to Terra, pleasure to meet you."
"We better board, we can get to know each other better on our way to Terra."
Meanwhile in the Byzantium Health Station, Amara decides to give Tsubaki a full check up and all of the appropriate shots.
"I should have done this when we first got you, with you being from a feudal world and all, but I simply didn't have the equipment or vaccines on me, open your mouth and stick out your tongue kid." Tsubaki does this and Amara places a metal rod on her tongue to keep it down while she looks into the mouth. "Your teeth and gums are good, that's a bit surprising, I take it you didn't have too many sweets growing up." Amara removes the rod so Tsubaki can speak.
"Shinobi children aren't given sweets, that would only weaken us and make us soft."
"Makes sense, now stick out your arm." Tsubaki does so as Amara quickly stabs a needle into the arm. "Bullseye, I got the vein right away." She then injects the vaccine into Tsubaki and she winces. "I wouldn't do that if I were you, I have about 29 more vaccinations to give you, and then I need to take a blood sample." The color drains from Tsubaki's face at hearing this.
"I gave a blood sample when I was registered."
"That only identifies you and has the most basic of analysis; I like to take my own, much larger samples. With the equipment here I can learn a lot about you that will prove useful later on, especially in emergency medical situations." Amara has a big smile on her face now. "Do you know that the Imperium of Man has some of the best medicine in the entire galaxy? Well we do, the problem, however, stems from the fact that our population is so great, this technology can only be used by planetary nobility, high ranking officials, our elite fighting forces, and members of the Holy Inquisition. Most citizens have to make do with the most basic and barbaric of medicines."
"Well that doesn't seem fair."
"There is nothing fair about life in the Imperium, but everything that is done guarantees the survival as a species as a whole. Like I said there are simply too many Imperial citizens to give the good medical treatment too, we have to save it for the absolutely most essential of personnel, which now includes you. This may seem harsh but the truth of the matter is that the life of one individual is pretty insignificant in the grand scheme of things. As someone who has dedicated her life to helping and healing others, it can be very difficult at times for me. I simply have to remind myself the good of the Imperium comes before any overblown individual good."
"Like the Greater Good of the Tau."
Amara cringes at this, "Not quite, the Tau delude themselves into believing that their Greater Good will benefit all and lead them to some great utopia. In the Imperium we are far more pragmatic, it's all about survival. The Imperium is like a body and our high ranking officials are like doctors and surgeons. At times a diseased limb must be cut off so that the body may live. Now, the sacrifice should not be forgotten, it should not be done callously, even though it usually is."
"What is the purpose of surviving if it's just one short, painful, miserable life where you are disposable?"
"Some like Nathaniel believe that humanity is evolving into a fully psychic and mature species, at which point we won't be nearly as defenseless against our enemies, and we must use every method possible to guarantee this apotheosis occurs. Nathaniel also has a strong hatred of abusive planetary nobles and corrupt bureaucrats, even though there really is no better system for us to follow than the current one. He may not always say or act like it, but deep down Nathaniel is an idealist who believes that mankind's best days are ahead of it."
"So he has the same mindset of the Tau." This is quite enough for Amara and she slaps Tsubaki hard across the face.
"You are lucky no one else heard that, people have died for less blasphemous things. Understand this, and understand it well, Nathaniel is nothing like the Tau, the Tau are liars, the Tau are hypocrites, the Tau delude their subjects, making them believe that they are happy when they are not. The Greater Good is a lie, a delusion to fool the masses. Nathaniel does not live in that world of delusion, and he does not hide the truth about what he does from anyone. Nathaniel has seen firsthand the madness of our galaxy, to an extent I hope you never have to experience. Never forget that the Tau are responsible for the death of your parents child, never forget."
"I will never forget what happened."
A smile once again emerges on Amara's face, "Good, now I will tell you how I came to be with Nathaniel. You may not know, but I come from a paradise world."
"What's a paradise world?"
"It's a beautiful idyllic world that Imperial officials like to visit to relax; the hot springs on New Kyoto are a smaller version of this concept. My world in particular, is known as a sportsman's world. It was stocked with all manner of fantastical creatures that rich imperial officials and powerful merchants would pay to hunt. We would lead all of these rich and powerful Imperial citizens on Safaris where they would get to watch and shoot these creatures. My family controlled one of the largest safari companies so they could afford to give me the best education, sending me off to the best academies of the Officia Medicae to become an elite Chirurgeon. When I returned for a visit I had discovered that a peculiar plague had engulfed my planet and had begun altering the bodies and minds of the inhabitants, turning them into vicious, bloodthirsty beasts that hunted in packs. Due to the favor shown to my world I was able to mobilize the Officia Medicae in an effort to keep my people from becoming inhuman beasts. At my darkest hour, when even I had begun showing the first signs of the conversion process, Inquisitor Clark came to my system. He was furious that the area had been quarantined and that some lazy and useless bureaucrat wouldn't let him enter. When he met with me he quickly revealed the nature of my people's predicament. An alien parasite known as Talmari had been introduced into our food supply by a major merchant. Talmari reproduce by taking over and altering their host's bodies. The merchant in question had been a common visitor and a presumed friend of our world, we did let him deliver our food after all. It turns out that he wanted the world to himself, and having its people gone he could have done just that. The parasite came in when he wanted some new, smarter, deadlier quarry to hunt; enough human intellect was left in the afflicted to make them challenging prey for him. He had even used his clout and influence to convince other Imperial authorities that their presence was not needed. Nathaniel, not being one to obey authority or even like merchants and nobles, ignored that order and began his investigation. Not only did he discover the man behind it but even the final clue in finding a cure. My world was saved, though sadly 20 percent of the population was beyond saving. The Inquisitor personally led the execution squads in giving those poor victims the Emperor's Mercy. In the aftermath, impressed with what I had accomplished, he offered me a place on his retinue. He was a man who had truly earned my respect, admiration, and gratitude, I did not hesitate for one second in agreeing to it, and I have never regretted it since. By the way we just finished with your shots, now for the blood withdrawal." Amara pulls out a large needle and Tsubaki faints at the sight of it. "Wonderful, it's so much easier to draw blood when people are unconscious." And she gets to work on the blood withdrawal.