Devil Face, Angel Heart

Disfigured assassin who serves Dinosaur and inherits a new life as Michael after Mei helps him regain a normal appearance. His arc moves from loyal enforcer to reluctant avenger, navigating the brutal demands of survival while wrestling with identity and loyalty. The transformation amplifies his resolve to confront the empire that shaped his fate. By returning as Michael, he infiltrates the very world that scarred him to orchestrate his revenge.

Police officer assigned to investigate Dinosaur's operations, driven by duty but overwhelmed by the brutality of the underworld. He embodies the persistent pursuit of law and order in a city where crime often outpaces justice. His confrontation with Long/Kwan marks a turning point in the investigation and highlights the costs of crossing criminals. Ultimately, his role underscores the human toll of the criminal empire.

Police officer partner to Dicky, tasked with dismantling Dinosaur's network. He represents formal law enforcement and becomes entwined in the case's escalating violence. His final act—shooting Michael under provocation—reveals the perilous blur between justice and vengeance in a world ruled by fear. Kent's actions frame the consequences of living on the edge of the law.

Triad boss who oversees a vast, brutal criminal empire spanning drugs, firearms, prostitution, and human trafficking. His control is exercised through fear, wealth, and strategic violence, making him the central target of Long's vengeance. Dinosaur's mansion is a symbol of opulence built on cruelty, and his downfall culminates in a violent confrontation. He embodies the criminal archetype at the top of a ruthless hierarchy.

Dinosaur's girlfriend who endures nightly abuse while harboring her own secrets. She destabilizes romantic and criminal dynamics through her evolving relationship with Michael and her own choices. Wendy's arc highlights manipulation, danger, and the precarious line between affection and coercion in the underworld. Her shifting loyalties drive several pivotal plot turns.

Former sex worker who mentors Long after his transformation, teaching him the art of seduction and survival. Mei seeds Long's reinvention, undergoes a revealing backstory, and shapes his new identity. Her care and pragmatism enable Long to pass as Michael and navigate danger with a calculated plan. Mei's past and influence illustrate resilience in a harsh world.

Wendy's new partner and crime ally who becomes entangled in the plan that unfolds around Wendy, Bull, and the criminal hierarchy. His capture and the ransom scenario reveal how individual ambitions can clash with larger criminal schemes. Jimmy's involvement emphasizes the precarious alliances that sustain the underworld.

Long's brother and member of the assassin duo, sharing the burden and danger of the mission. His presence deepens the family-like loyalty within the hit squad and adds a personal stake to the vengeance arc. Kwan's fate intersects with Long's transformation and the broader collapse of Dinosaur's network.

One of Bull's men who appears in the climactic sequences, representing the volatility and danger of dealing with powerful clients. His involvement underscores the intensity of rivalries and the unpredictable violence that erupts during high-stakes deals. The Bull faction embodies the external pressures and threats facing the protagonists.