Visit for more from Spooky Empire MayHem 2014 Once Upon a Time stars Lana Parrilla, Rebecca Mader, Sean Maguire, Freya Tingley, and Jason Burkart were featured in a panel discussion at Spooky Empire s MayHem 2014 discussing recent seasons as well as a bit about Frozen and a bit about the future of the hit ABC show, also answering questions from attendees.