Learn, Live, and Explore (LLE): Hi Rori!
Rori Shay (RS): Hi!
Here are my thoughts on actors: Maisie Williams or Sophie Turner from "Game of Thrones" for Aloy; Elle Fanning or Ariana Grande for Vienne; and, Torrance Coombs from the CW Network's "Reign" for Griffin. I showed Rori the photo of Torrance Coombs, and may have sold her on the idea.
Also check out the Elected Kickstarter campaign for a great way to support Rori and her desire to get the book published in the traditional hardback format, in addition to paperback and e-book. There are several ways to donate, and maybe get a little book related souvenir in return!