Randall Flagg has been featured in a novel.
Randall Flagg . Flagg has appeared in at least nine of King 's novels , either as a major or very minor character . He makes his second appearance in The Eyes of the Dragon as an evil wizard trying to plunge the fictional medieval city of Delain into chaos . Flagg was a primary antagonist in King 's epic series , The Dark Tower , who tries to keep protagonist Roland Deschain from reaching the Tower ( the linchpin of existence ) so he can claim it for himself and become a god . Aside from King 's novels , Flagg was featured in a television miniseries adaptation of The Stand ( played by Jamey Sheridan ) and the upcoming Dark Tower film adaptation ( played by Matthew McConaughey ) .