Cedric Diggory's father and the head of the Department for the Control and Regulation of Magical Creatures. He's proud of Cedric and expresses it in a way that embarrasses Cedric; the few times that Harry meets Mr. Diggory, he speaks as though he's obsessed with pointing out the ways in which Cedric is better and Harry is inferior. He also shows that he's willing to jump to conclusions, as when he accuses the house-elf Winky of conjuring the Dark Mark, thereby accusing Mr. Crouch of teaching her to do so. The way he speaks to Winky (he calls her "elf" and uses a stern voice) suggests that he doesn't think highly of the creatures that answer to his department.