Isaac Foster

Isaac Foster is the scythe-wielding killer known as Zack in Angels of Death.

Isaac Foster's escape with Rachel

Zack controls one floor of the underground facility and initially hunts Rachel Gardner, but the two form a pact: he will kill her after she helps him escape. His impulsive violence contrasts with his refusal to tolerate lies.

Zack's pact, scythe, and troubled past

His bond with Rachel develops through their shared escape, while his burn scars, abusive childhood, physical endurance, and direct fighting style explain both his aggression and his fierce attachment to their promise.