[ The deep voiced warrior removes his helm, exposing a face that is very craggy, and somewhat pale, scars covering a face that is generally described as handsome, the warrior has very pronounced masculine features, so square jawed as to almost be a parody, the subtle hints of genehancement or genetic-engineering writ all over the Knight-Errant. His hair is light blond, almost silver, and cut very short, the better to fit in his helm.]

A psyker is someone who manipulates supernatural phenomena through technological and controlled ritualistic methods.

And if you are not human, then why do you look human? [ There is a small hint of a suspicious frown on his face, though the microexpression is easier to read on someone built rather larger than normal scale. ]