Carter’s math teacher, who provides educational support and guidance during Carter’s remote learning period.

A crucial figure in Carter's life, serving as both his main romantic interest and a measure of his social standing.

Carter’s younger brother, whose skiing accident sets the plot in motion and whose actions reveal his loyalty to Carter.

Carter’s best friend, who supports him in investigations while cautioning against overzealous surveillance.

The leader of a popular school clique, presenting a social challenge and rivalry for Carter.

Carter's concerned parent aiming to balance his use of screen time with more active pursuits for his well-being.

A criminal group posing a threat to the community, driving the central mystery within the story.