The head of the Albatross Society, who provides Tom with new identities and missions but also manipulates and controls him for selfish reasons.

Tom's first love, whose relationship with him provides a deep sense of purpose and whose memory continues to influence him throughout his life.

Tom and Rose's daughter, who shares Tom's slow-aging condition and is a significant motive for Tom's actions, affecting his choices and survival.

A friend of Tom with the same condition, who offers a perspective of living without fear and finding happiness through love and acceptance.

Tom's second love interest, who symbolizes the potential for new beginnings and acceptance, offering Tom a renewed chance at happiness and family.