Roland's father, a gunslinger of the twenty-ninth generation descended from Arthur of Eld. He sends Roland, Cuthbert, and Alain to Mejis to keep them safe from the growing conflict with John Farson, while also tasking them with counting the Barony's resources. He wrote the letter of introduction that the boys carry. A grave, wise man who understands the political situation better than most, he is mentioned throughout Roland's flashback as a guiding influence.

A late-emerging figure whose origins and significance the closing books of the series take their time unfolding - linked by deep bloodlines to forces on both sides of the long cosmic conflict the Tower's defenders have been waging. Possessed of unusual physical capacities and animated by an inheritance of grievance that predates his own existence, Mordred is the rare antagonist whose nature is itself one of the things the series is still revealing in its final act.