《哈利波特与魔法石》中出现了哪些角色？

In "Harry Potter and the Philosopher's Stone," many important characters appear. Here is a list of some main characters and some secondary characters:

 Main Characters

1. Harry Potter

   - The protagonist, a young wizard who discovers he is a famous figure in the magical world.

2. Hermione Granger

   - Harry's friend, a smart and diligent witch.

3. Ron Weasley

   - Harry's friend, a red-haired boy from a large family.

4. Albus Dumbledore

   - Headmaster of Hogwarts School of Witchcraft and Wizardry, a highly respected wizard.

5. Severus Snape

   - Potions Master at Hogwarts, who has a cold attitude towards Harry.

6. Minerva McGonagall

   - Deputy Headmistress of Hogwarts and Transfiguration professor.

7. Rubeus Hagrid

   - Keeper of Keys and Grounds at Hogwarts, the first to tell Harry he is a wizard.

8. Draco Malfoy

   - Harry's classmate and rival, from a pure-blood family.

9. Lord Voldemort

   - The main antagonist, a powerful dark wizard seeking to return to power.

### Secondary Characters

1. Vernon Dursley

   - Harry's uncle, very strict with Harry.

2. Petunia Dursley

   - Harry's aunt, Vernon's wife.

3. Dudley Dursley

   - Harry's cousin, who likes to bully Harry.

4. Quirinus Quirrell

   - Defense Against the Dark Arts professor at Hogwarts, secretly working for Voldemort.

5. Neville Longbottom

   - Harry's classmate, a student in Gryffindor.

6. Sybill Trelawney

   - Professor of Divination.

7. Argus Filch

   - The caretaker at Hogwarts.

8. Nicholas Flamel

   - The creator of the Philosopher's Stone (mentioned in the book).

9. Dean Thomas

   - A student in Gryffindor.

10. Rita Skeeter

- A journalist in the wizarding world (appears in later books).

Heads of the Four Houses at Hogwarts

1. Minerva McGonagall

   - Head of Gryffindor House.

2. Severus Snape

   - Head of Slytherin House.

3. Filius Flitwick

   - Head of Ravenclaw House.

4. Pomona Sprout

   - Head of Hufflepuff House.

These characters play significant roles in "Harry Potter and the Philosopher's Stone," helping to establish the foundation and plot of the entire series.