Board Thread:Spoilers!/@comment-6175354-20131205143032/@comment-6175354-20131223185603

Sora1954 wrote: Matt Mitovich assumes she will be Regina's sister : http://tvline.com/2013/12/22/once-upon-a-time-wicked-witch-regina-sister-spoiler-alert/ and his assumptions must come from somwhere as he has access to more informations than the audience. I would not be surprised at all, if the Wicked Witch is Regina's sister. It was already confirmed, that they will be rivals.

The creators have said, that they wanted to bring Rose McGowan back, as young Cora. Implying, that there was more to her story, than meets the eye. If the Wicked Witch is related to everyone, she might be Regina's older half-sister.... possible even Rumplestiltskin's daughter. There is nothing to contradict, that Cora had another daughter.