Rose McGowan with magical powers? Stop us if you've heard this one before. In any case, 'Once Upon A Time' fans know that, like its spiritual predecessor 'LOST,' the ABC fairytale series likes to dip into the past to showcase new sides to its characters. The latest to recieve the flashback treatment will be none other than the evil(er) queen Cora, set to be played by none other than Hollywood actress Rose McGowan! But what will we learn of Cora from her time in the past?

ABC's Once Upon A Time season 2 has boasted some impressive star power in its sophomore year, but may have found its biggest, most deliciously evil casting to date.  Deadline reports that former 'Charmed' star and 'Grindhouse' actress Rose McGowan will join the magical series in an upcoming episode, stepping in for Barbara Hershey's role by portraying a young Cora.

The 2013 episode will explore the backstory of Cora, chronicling how she came to be even worse than her own evil queen daughter Regina. Previously the season has featured former ‘LOST‘ star Jorge Garcia as a giant, as well as classic fable characters including Mulan, Sleeping Beauty, Ariel, Aladdin and the villainous Jafar.

What say you? Will Rose McGowan make for an effective young Cora? Who would you like to see join 'Once Upon a Time' season 2?