Who are the main character in freedom writer book?

The main character in the book "The Freedom Writers Diary" is Erin Gruwell, a young, idealistic teacher who inspires her students to write and think critically about their lives and the world around them.

While the book primarily focuses on Erin's journey, the story also highlights the experiences of her students, who are the true heart of the narrative. They are the ones whose voices are given a platform, and their struggles, triumphs, and perspectives are central to the story.

Therefore, while Erin Gruwell is the main character in terms of the narrative structure, the true protagonists are the students, the Freedom Writers themselves.