Head of the Department of Regulation and Control for Magical Creatures
Walnut phoenix feather
Amos Diggory was a wizard who is the head in the Department for the Regulation and Control of Magical Creatures at the Ministry of Magic. He and his wife lost their son Cedric in 1995, when he was murdered by Peter Pettigrew on Lord Voldemort's orders. Amos is the younger brother of Benedict Diggory.
The Diggory family lives either in or near to the village of Ottery St. Catchpole, near the Weasley, Lovegood, and Fawcett families. In 1994, Amos and his family attended the Quidditch World Cup. After a Death Eater riot broke out, A team of Wizards and Witches including Amos found the house-elf Winky lying beneath the Dark Mark and questioned her about what happened.
He performed Prior Incantato on the wand of Harry Potter to deduce who had used the Morsmordre spell. Later, he asked Arthur Weasley to help Alastor Moody out of trouble; unbeknownst to him, this was the day Moody was kidnapped by Barty Crouch Jr. Amos simply thought it was another false alarm from the paranoid Moody and wanted to ensure that the former Auror's new job at Hogwarts would not be jeopardized.
That same year, Amos's son Cedric was selected as Hogwarts' champion in the Triwizard Tournament, something Amos was extremely proud of him for. However, Harry Potter's name also came out of the Goblet of Fire. Many people erroneously believed that Harry intentionally tried to cheat Cedric and Hufflepuff house out of their deserved glory, as he was too young to be selected and received the most publicity. Amos was openly rude to Harry before the tournament's Third Task. This infuriated Molly Weasley, with whom Amos almost had a public confrontation, but his wife restrained him.
Harry and Cedric considered themselves to be equally winners at the end of the tournament, thus they both touched the Triwizard Cup, unwittingly taking a Portkey as part of the trap Lord Voldemort set for Harry. Voldemort ordered his servant Peter Pettigrew to kill Cedric. Harry managed to escape the graveyard with Cedric's body, returning him to his devastated parents (Amos openly sobbed and screamed later while Harry explained what happened). Amos thanked Harry for returning Cedric's body, and assured him that they did not blame Harry for his death. Harry tried to give them the prize money that came with winning the tournament, but they refused it.
Battle of Hogwarts
Amos fought in the Battle of Hogwarts to avenge the memory of his son. He fought bravely during the war and do not hesitate to spell as many Death Eaters as possible.
In 2017, Amos had become the head of his department in the Ministry of Magic. However, he had to overcome problems like the death of one of his employees and articles in the Daily Prophet.