You feel a connection with the Zabraks? (sp?) . . . maybe you were one in past life?! ;p

If I remember right, first time the Inquisitor talks to Lord K., he says . . ..flesh of my flesh, child of my child . .. ..(submit child with son or daughter, depending on what sex you are). . .. . So, direct blood relation between Lord K and the Inquisitor. Lord K was also a "friend" of the Lord that originally had Khem Val. Then he was betrayed by him. Usually, from what happens at the end of chapter 1, with the information that Thanaton says, It is assumed that anything that connects to the Darth\Lord that was killed, is either wipped out (killed?) or "done away" with. So, being put into slavery would work for a pureblood sith. Since some pureblood sith are all about being pureblood and all, it stands to reason that they would, as slaves try to stay as much pureblood as they can, might breed with human once in a while. Might even go so far as seduce other pureblood non slaved sith to breed with 'em.

For a sith warrior as a mandalorian: The Father was a Mandalorian, but the mother was a "pureblood sith", and they kept a secret relationship over the years. The child, is said to be "pureblood sith". The Mandalorian could also be a "bodyguard" of the sith lady, and the sith lady had the mandalorian to train the child aka mandalorian culture and fighting style, etc. How's that ?

Yoda's race would be very interesting to play. Or Kel Dor race.