Arn's little brother with whom he shares a playful companionship before the war disrupts their childhood.

Arn's oldest sister who values education and tries to keep Arn on a good path, even as their lives are uprooted by the Khmer Rouge.

Arn's youngest sister with a strong personality and a special bond with Arn, who he sees struggle and change due to the harsh conditions they face.

Arn's friend from before the evacuation, identified as a "rich boy" because of his family's wealth and his bicycle.

Arn's second oldest sister known for her pride in her appearance, particularly her hair, which changes under Khmer Rouge oppression.

Arn's third oldest sister, whose hopeful spirit diminishes over time in the camps but who later survives the war.

A fellow child, distinguished by his prominent ears, who bonds with Arn over playing music in the ensemble and faces the trials of camp life.

Arn’s music teacher who harbors resentment against the Khmer Rouge but finds a way to impart his knowledge of music to Arn.

A boy who dances in the camp's ensemble, forming a friendship with Arn as they navigate camp life and its challenges.

A Khmer Rouge guard who forms an unexpected relationship with Arn, showing moments of leniency amidst the brutal regime.

A resourceful boy who joins Arn's group and is skilled in finding food in the camp.

A notable visitor to the Thai refugee camp where Arn resides, recognized for her high-profile position.

The strict overseer of Arn’s refugee camp known for her authoritative presence and rules.

A small former child soldier who becomes attached to Arn during their time in the refugee camp.

An American activist who takes an interest in Arn and helps him transition to life in the United States.

A competitive volleyball player at the refugee camp who is chosen by Arn to accompany him to America.

One of Arn's friends from the refugee camp, known for his volleyball skills and comparatively easier adaptation to American life.

Peter Pond’s children who play a part in welcoming Arn and his friends into their family.

Peter Pond's wife, who plays a role in creating a structured and supportive home for Arn and his friends.