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- Draco Malfoy – Slytherin student in Harry's year, Slytherin Quidditch Seeker, school prefect, member of the Inquisitorial Squad,
- Lucius Malfoy – Draco Malfoy's father, an influentail Death-Eater, and Governor of Hogwarts
- Narcissa Malfoy (née Black) – Lucius Malfoy's wife and Draco Malfoy's mother, sister of Bellatrix Lestrange, cousin of Sirius Orion and Regulus Arcturus Black, aunt of Nymphadora Tonks
- Olympe Maxime – Half-giantess, Headmistress of Beauxbatons
- Ernie Macmillan – Hufflepuff student in Harry's year, school prefect, member of Dumbledore's Army
- Minerva McGonagall – Hogwarts Transfiguration professor, Head of Gryffindor House, member of the Order of the Phoenix, Animagus.
- Alastor "Mad-Eye" Moody – Retired Auror, member of the Order of the Phoenix, killed by Lord Voldemort in the Battle of the Seven Potters
Read more about this topic: Barnabas Cuffe, Characters Alphabetical By Surname and Name