Anything is possible onSupernatural.
But according toSupernaturalshowrunner Andrew Dabb, shes 100 percent human.
She was brought back, Dabb says.

Credit: Katie Yu/The CW
There is nothing demonic, nothing angelic.
This is really her and shes having a real impact on our boys.
When she comes in, its family through another lens.

How does she affect Dean?
Supernaturalseason 12 premieres Thursday, Oct. 13 at 9 p.m.
ET on The CW, and dont missSupernaturals Jensen Ackles and Jared Padalecki at EWs PopFest October 29-30.