John D. E. Torrance

Jack is the husband of Wendy Torrance, the father of Danny Torrance and Lucy Stone, and the grandfather of Abra Stone; he was an author and former teacher, who accepts a position as winter caretaker of the Overlook Hotel in Colorado, so he has an opportunity to finish his book. The evil spirits, which inhabit the hotel, drive him crazy and force him to attempt to murder his family with a roque mallet. However, Danny also has some psychic ability, which he uses to try to protect Jack. They escape, but unfortunately, Jack regains his sanity too late and the hotel boiler explodes, killing him as well as destroying the hotel.

Jack appears in the novel Doctor Sleep, in which his son Danny (now known as Dan) discovers that he has a half-sister named Lucy, and a niece named Abra who has similar abilities to him, only more powerful. Dan sees a vision of his father at what used to be the Overlook Hotel near the end of the novel.