A dedicated Drake police sergeant, whose competence and forceful personality prove essential in the investigation, demonstrating her loyalty to both her community and John Puller.

A young, troubled individual dealing with personal and environmental challenges, whose actions introduce critical information about the plot's central mystery.

The eldest of the Cole siblings, who finds independence through her business ventures while remaining tied to her family, and faces personal struggles related to her marriage and community.

The self-absorbed owner of Trent Exploration, whose failing business and flawed character contribute significantly to the story's conflict.

The chief operating officer of Trent Exploration, who manipulates behind the scenes for personal gain and represents a lack of emotional connection.

Bill Strauss’s son, a former Army serviceman, who struggles with the expectations of his father and his own personal challenges.

A Department of Homeland Security employee, whose mysterious involvement in the investigation adds layers of suspicion and intrigue.

A high-ranking military officer whose ambition and oversight lead to complicated consequences, yet she takes responsibility for her actions and remains a potential ally for John Puller.

Once a legendary figure on the battlefield, now facing personal decline and estranged from his sons due to his own past behaviors and expectations.

John Puller’s older brother, a trusted and accomplished officer and nuclear physicist, whose imprisonment raises questions about his integrity and the circumstances of his conviction.