I've been thinking about my characters; and what voices they would have...

Asura's would be Courtenay Taylor; who plays Jack in the Mass Effect series.
Xian's would be Stephanie Young; who voices both Nico Robin from the Funimation dub of One Piece and Clare from Claymore. Xian would sound closer to her Robin voice.
Ashnii/Ashlei/whatever I decide to name her would be Andrea Deck, who voices Amanda Ripley in Alien: Isolation; and likely in the almost-sure-to-happen sequel.
My unnamed Threed would be Akemi Okamura; the Japanese voice actress of Nami from One Piece.