Board Thread:Spoilers!/@comment-27060727-20171014181959/@comment-1916997-20171022140351

IMDB is reporting this actress as Tween Anastasia:

http://www.imdb.com/name/nm7599761/

Her Twitter basically confirms as well. She posted about how she got a new job on a Vancouver fantasy show (look at the hashtags), and did a post that people should watch Once this season, with a winky smiley:

https://twitter.com/yael_yurman?lang=en