Well-educated aristocrat Cotton is driven by obsessions and desires not befitting a preacher as he hunts down witches without knowing exactly who is pulling the strings around him.
Isaac knows all too well what it's like to be a victim of the puritans, making him a valuable ally to John and Cotton as they try to find out the truth behind Salem's witches.
A reverend's daughter, Mercy is both powerful and vulnerable. She's the victim of a terrifying tormentor that only she can see, but there are scars left behind to lend credence to her tales.