Hi, Co-GM here.

Its an interesting sheet. I understand you haven't finished updating it yet, but I would say that extra attention should be put in on the reason for arriving on the Hask now. In particular, two aspects of this.
One: Why was he transferred to the Hask now? Darth Nyiss isn't working with many others and I personally find it unlikely that he was captured on Coruscant and then transferred to the Hask later.
Two: If one is not so, then who onboard the Hask (assuming he's been there all along in this case) ordered him to undergo this torture? I suggest looking through the Sith side of the current cast and considering this, as all Sith characters of Apprentice rank and above are named and accounted for. Feel free to ask for more information on the characters and who might be likely to do such a thing.

One other note on this, is that you have in effect already used one of the most effective tortures (in his case) on him by saying this. Will you be playing him as half way to turning already?

Oh and the final thing I feel I must mention as it was not included in the OP here, is that character death is a very real possibility. We don't kill off people willy-nilly, but by the same token no-one is safe. Even Darth Nyiss can be killed should circumstance provide. At the very least, injury is guaranteed, especially as a Jedi.