The Camp on Blood Island

A former rubber planter who becomes a key organizer among the male prisoners. He relies on a secret radio to stay connected with the outside world and drives much of the plan to outlast the Japanese. He is pragmatic, resourceful, and intensely loyal to his fellow prisoners.

The commanding officer whose leadership is marked by difficult, sometimes illogical decisions made under extreme pressure. He withholds information to try to maintain order and morale, which creates friction with others but is aimed at preventing mass panic and massacre.

Former governor whose wife and son are in the women's camp. He challenges Lambert's secrecy and argues for more openness, while still trying to keep hope alive for his family and fellow prisoners.

A prisoner in the women's camp, she embodies resilience and helps maintain morale among the women. She participates in the information network and supports others as danger intensifies.

Captured physician who becomes central to the plan to inform the Allies. He is pragmatic and willing to take risks to prevent further bloodshed, but is ultimately killed during the attempt to convey the truth.

U.S. Navy pilot who tries to contact the outside world on behalf of the prisoners. He displays courage, improvisation, and resourcefulness as he drives the plan to break through and bring help.

Japanese officer who is the driving force behind the looming massacre. He embodies the ruthlessness of the execution threat and becomes a focal point of the prisoners' resistance.

A Japanese commander figure within the camp's structure who interacts with both guards and prisoners during the climactic confrontation.

Officer in the men's camp whose fate punctuates the brutal price of rebellion and the strategic struggle for survival.

Wife of Cyril Beattie, held in the women's camp. Her safety and fate are tied to the decisions of the male prisoners who attempt to alert the Allies.

A nurse among the women prisoners who provides care under harsh conditions and becomes part of the resilience of the group.

An officer among the prisoners who seizes a machine gun in a tower, and is killed by a misdirected grenade from Lambert. His death underscores the brutality of the conflict.