Whether you meant Serwe or Serwa in the OP, I think they're a secondary player, not a primary. Kellhus' children, sans Inrilatas and Kelmomas/Samarmas, are effectively just extensions of their father. Much like the entire Great Ordeal. They are no true Dunyain. Also I don't think you can list Kelmomas without also listing Samarmas. They're inseperable. Literally.
I'd also boost Psatma Nanneferi to primary player. She's basically Yatwer's main agent on Earwa, and was vital in bringing the White-Luck Warrior into creation. She may (or may not, we'll see) even being manipulating Fanayal. Someone else ultimately moves her (that being Yatwer) but the connection is by necessity only occasional and tenuous due to Yatwer being stuck in the Outside. She's even had a number of point-of-view chapters. If Esmenet and Sorweel are primary players, then so is Psatma Nanneferi.
Incidentally, Psatma is also a strong female character that's never brought up in arguments that the series has none of such and is inherently misogynist. I suppose it's because she's an antagonist instead of a protagonist.
