Fancasting

[vass]

"This body that spoke to me -- one of thousands -- looked to be about thirteen years old. Black-clad, dark-skinned. Her face was already stamped with the aristocratic features that were, in Radchaai space, a marker of the highest rank and fashion. Under normal circumstances no one ever saw such young versions of the Lord of the Radch, but these were not normal circumstances."
(Ancillary Sword, page 1.)

She isn't actually thirteen yet, but I think Quvenzhané Wallis is talented and self-possessed enough for the part, while also adorable enough to make it terrifyingly jarring.