Cora

Cora (also known as Cora Mills) is the main antagonist of the first and second half of season 2 in Once Upon a Time. She is the wife of Prince Henry, the mother of Queen Regina and Zelena and grandmother of Robin Hood-Mills.

In Wicked Souls, Cora frees herself from the Underworld and attacks Regina, Maddie and Snow White. However, she briefly inhabits Maddie's soul to give her glimpses of the past with Zelena before she is removed from Regina before sending Maddie to the hospital.