1. Harry Potter:

Harry Potter, whose mother Lily and father James were killed by Voldemort, currently lives with his aunt and brother-in-law  at number 4 Privet Drive, is the main character of the book.

2. Hermione Granger:

She is a girl whose parents are Muggle, but she is smarter than pureblood wizards. He met Harry and Ron on the Hogwarts Express and became friends with them after Harry and Ron saved him.

3. Ronald Weasley:

He comes from a completely pureblood lineage and met Harry on the Hogwarts Express. Her family's financial situation is not very good.

4. Dursleys:

They are Muggles who live with Harry at number 4 Privet Drive.

5. Weasleys:

They are Ron's family. Their financial situation is not very good. There are 9 people in total and they live in Kovuk.

6. Lord Voldemort (Tom Marvolo Riddle):

He is the dark wizard who killed Harry's parents. He is bald, has two slits on his nose, has red eyes and is scary.

7. Death Eaters:

They are disciples of the Dark Wizard Lord Voldemort. He has the Dark Mark on his arms. Thanks to this sign, they can communicate with Voldemort.