Board Thread:General Discussion/@comment-24589671-20140707192733/@comment-3560615-20140710062552

Gusey1397 wrote: Ok, so this confirms that Anna, Elsa and Kristoff will appear in this episode but also Giancarlo Esposito. I'm kinda of hoping that it is Sidney that appears because he was last seen in the Asylum but if the Magic Mirror appears then it means that Regina will probabaly be in the flashback. I can't wait for this episode now.

http://www.tvguide.com/News/Once-Upon-Time-Giancarlo-Esposito-Season4-1084083.aspx

Also, filming has begun and they have a reindeer https://twitter.com/AdamHorowitzLA/status/486898642314227712 I can't help, but as far as Frozen was away from the Original story of the Snow Queen, in the original there was a mirror who just appeared at the beginning but was very important for everything that followed. Maybe in OUaT they will do a twist on that thing with the help of the Magic Mirror (we don't know how long that Ice Queen was imprisioned, but maybe ist wasn't for sooo long if they want to put her entourage not only in flashbacks)