Brian is an independent 16-year-old boy who previously survived alone in the Canadian wilderness. Back in his hometown, he struggles to adjust to typical teenage life and feels disconnected from his high school peers. Finding modern society loud and superficial, he yearns to return to the natural world where he feels capable and at peace.

Caleb is a tall, stocky African American man and a retired police officer who works as a counselor. Having lost his sight unexpectedly, he approaches life and his clients with a straightforward, unpretentious attitude. He asks Brian to describe the woods in detail, becoming genuinely moved by the young man's experiences and encouraging him to follow his instincts.

Billy is a middle-aged man who lives full-time in the wilderness, possessing weathered skin and well-worn gear. He shares Brian's philosophy on ethical hunting and living simply within nature. Billy introduces Brian to the concept of "medicine," viewing animals and nature as spiritual guides.

Brian's mother is a busy real estate agent raising her son following a divorce. She loves Brian but frequently works, leaving him to his own devices. She harbors deep fears about the wilderness due to Brian's past trauma, but she sets aside her anxiety to support what her son needs for his mental well-being.

Carl is a jealous high school student who bullies Brian. He instigates a physical fight without realizing that Brian's wilderness survival instincts will cause him to react with overwhelming defensive force.

Susan is a high school classmate who harbors romantic feelings for Brian. She attempts to include him in typical teenage social activities, though Brian struggles to connect with her interests.

Haley is part of the friend group at Brian's high school. She represents the everyday teenage life that Brian feels increasingly alienated from as he withdraws from civilization.

The pilot operates supply flights to remote locations in northern Canada. He provides Brian with transportation and a map for the first leg of his return trip into the wild.

Two older men who share Brian's early morning flight into the woods. They impress Brian with their quiet demeanor, well-cared-for simple gear, and catch-and-release fishing philosophy.

A Cree family living in a remote wilderness camp about 100 miles from Brian's drop-off point. Having rescued Brian in a previous experience, they serve as his initial target destination for his summer journey.