who's harry enemies in sorcerer's stone?

In the Sorcerer's Stone, Harry's main enemy was Professor Quirrell, who was possessed by Lord Voldemort. However, he also faced obstacles and challenges posed by other characters such as Draco Malfoy and Snape.

In the book "Harry Potter and the Sorcerer's Stone," Harry Potter encounters several adversaries. Here are the key antagonists and enemies faced by Harry:

1. Lord Voldemort: The main antagonist, an evil wizard who killed Harry's parents and seeks immortality and power.

2. Professor Quirinus Quirrell: A Defense Against the Dark Arts teacher at Hogwarts who secretly serves as Voldemort's host and attempts to steal the Sorcerer's Stone.

3. Draco Malfoy: A fellow student in Harry's year and a member of the pure-blood supremacist Malfoy family. He frequently bullies and antagonizes Harry.

4. Severus Snape: A complex character who appears to be Harry's enemy throughout the book due to his harsh treatment and favoritism toward Slytherin house. However, his true allegiance and motives become clearer later in the series.

5. Troll: Harry and his friends face a dangerous mountain troll that is accidentally released into Hogwarts by Professor Quirrell.

6. Fluffy: Hagrid's three-headed dog who guards the trapdoor leading to the Sorcerer's Stone.

These are the main adversaries Harry encounters in "Harry Potter and the Sorcerer's Stone."