Gender: Female Location: When in Doubt, Go to the Library.
Randall had "truer" faces, two of them, each more hell-like than the other. He was also able to be "all-seeing," because crows were his servants and so he saw whatever was in the mind of the crows. Also, he had the power to visit people's dreams, the power to find out a person's greatest fear. In Frannie's dreams [she was pregnant] he was carrying a straightened wire hanger and she had nightmares about him using it on her to abort her child.
He crucified anyone who upset him using telephone and electricity poles, dismembered some rebels, set fire to some.
He could change matter - his top followers wore a black stone around their necks; Randall Flagg had turned each of them into what that person wanted most. For example, for Trashcan Man, a schizophrenic pyro, he turned the stone into a lighter. For his head security man, whom he found starving in a jail cell, he turned the black stone into the jail cell key.
Very good at tempting, matter changing, dream appearances, influencing through mind/dreams.
Technically, the book says he's not The Devil, but a demon high in the ranks, always on earth to cause chaos and disorder.
__________________
It does not do to dwell on dreams and forget to live.