Who are the characters of Drown by Junot Diaz?

Yunior: The protagonist of the story. He is a Dominican American man who lives in New Jersey with his parents. He is deeply affected by the drowning death of his childhood friend, Beto.

Rafa: Yunior's father. He is a hard-working man who came to the United States from the Dominican Republic. He is often strict with Yunior, but he also loves him deeply.

Mami: Yunior's mother. She is a loving and devoted mother, but she is also struggling with her own issues, including mental illness.

Beto: Yunior's childhood friend who drowns in the Passaic River. Beto is a symbol of Yunior's lost innocence and the harsh realities of life.