A deliberate and sensitive character with a contrasting temperament to Jack, known for his larger metaphysical connections with the environment and his reluctance to impose strength despite being physically powerful. He maintains a strong moral code and is identified as an artist and idealist.

Initially passive, she is a geochemist with a wealthy background, encountered by Jack and Wynn in a distressing state. Her circumstances and the motivations behind them become a central element of the narrative.

The antagonist of the novel, distinguished by his nearsightedness and initial appearance of panic and shock when encountered by Jack and Wynn. He becomes involved in the story's conflict through his violent behavior and complex motives.

Two individuals with contrasting physiques and former Marine backgrounds, initially encountered by Jack and Wynn as drunken and vulgar. They are skilled in the wilderness, and Brent later exhibits a sense of frontier justice in response to the story's unfolding events.