I love Priest's supporting characters. I love how she started Stars of Chaos from supporting characters' POV, and then she keeps dropping in on them and making us love them more and more.
My one complaint is: why doesn't she write more (even more) Extras featuring her supporting characters? We care!
Brief Character Analyses and Spoilers for Stars of Chaos below...
Cao Chunhua 曹春花 / 曹娘子 Cao Niangzi:
曹春花， I love you! How did you get so good at languages and disguise and acting? Did you ever get to catch a nice young man? Or are you constantly catching nice young men in a serial fashion? Ahhh, our little 娘子 <3 I definitely want to read more about you and your adventures.
Li Feng 李丰, "Long An" Emperor, Chang Geng's unfortunate half-brother:
You tried so hard. I don't actually want to read more about you, but I want you to know that I appreciate that you did your best, and validate that you really were a lot better than your dad -- you were just unlucky, and, sadly, you had to die for it. Life is hard. And short, for you.
Fang Qin 方钦
Yah, life is unfair. I don't want to read more about you, either -- I just want to ruminate on how you were a fancy rich popular kid, but all you really wanted was to hang out with the nerds. The nerds were smart and fun and honest and doing cool things, but your fancy rich popular old-money family held you back. Too bad you didn't have any backbone.
Chen QingXu 陈轻絮 and Shen Yi 沈易
What an amazing couple. I feel like Chen QingXu is barely in the book at all, but every time she is mentioned it is with reverence and awe. My favorite scene with Chen QingXu is when she's chaining together Pipa melodies while a battle is literally going on in front of her, then elegantly floats away when her part of the battle is concluded...
And! And! When she figures out that the Spirit Mannequin is actually a "book" and clutches it "like she's never seen wood before," I swooned -- Chen QingXu is a scientist, through and through <3
Every time Shen Yi is mentioned, I know I'm going to have a good time, too. It is through his near-constant consternation at Gu Yun that we see how terribly fun (emphasis on the "terrible") Gu Yun is.
Poor Shen Yi, putting up with his crazy best friend. Accidentally rising to one of the highest positions in the land just because he doesn't want to go home and instead follows his best friend out to the far remote edges of the empire; and is totally willing to give it all up to be a house-husband for the girl he likes, once he gets up the courage to tell her he likes her. What a sweet guy <3
Yah, I want more Chen QingXu and more Shen Yi and more ChenYi.
Old Master Shen 沈老爷子
While we’re talking about the Shen family, I’d love to read more about Shen Laoyezi. He knows everything. His bird cusses out everyone. He’s pretty awesome.
Yao Zhen 姚镇 / 姚重泽 Yao ZhongZe (Chong Ze?) (I'm not so good when a word has multiple pronunciations)
I'm not super hungry for more Yao Zhen content, but I love every bit of Yao Zhen that I get to read. Poor man -- he just wants to hang out and enjoy life, but Gu Yun keeps giving him all these empire-critical, life-and-death-of-thousands responsibilities. The man knows what he wants! But Gu Yun just railroads past those clearly delineated desires and keeps raising him up to higher and higher positions of responsibility!
Living up to your true potential is overrated; sleeping 10 hours/day is the way to go :)
Huo Dan 霍郸
Oh, the stories that Huo Dan could tell... Poor man, having to put up with Gu Yun's peculiarities and Chang Geng's idiosyncrasies and I'm sure he learned very early on to always knock before entering any space that the two of them think they're alone in.
I want more Huo Dan stories ;)
That's pretty much it for me. I love Ge PangXiao 葛胖小 / 葛晨 Ge Chen, too, but I am satisfied with his story already. He's cool, he's sweet, but he's not mysterious like Cao ChunHua and Chen QingXu, or in an entertaining state of near-permanent exasperation because of Gu Yun's shenanigans like poor Shen Yi is. You do you, Ge Chen.