- Eldritch Diggory — Minister for Magic from 1733 to 1747. Died in office from a case of dragon pox.
- Amos Diggory — a Ministry of Magic employee in the 1990s
- Cedric Diggory — a Hufflepuff student and Triwizard Champion who was killed by Peter Pettigrew in 1995
- Mrs Diggory — Amos's wife and Cedric's mother