Jacob's grandfather, whose intriguing stories and mysterious death drive the narrative and Jacob's quest for truth about the peculiar world.

Jacob's father, who accompanies him to Cairnholm, representing skepticism and a contrasting perspective to Abraham's bold tales.

Initially a supportive figure to Jacob, whose motivations and true identity become more complex as the story progresses.

A guardian and protector of the peculiar children, providing safety and essential knowledge that catalyzes Jacob’s path from innocence to understanding.

A peculiar child with connections to both Abraham and Jacob, who plays a significant role in helping Jacob learn about his grandfather and the peculiar world.