Cadet Taygeta (first name unknown) – A sharp, brilliant young officer assigned as Kai Nova’s counterpart. Highly analytical and lacking in empathy, she sees human intuition as inefficient—until she begins to uncover unsettling gaps in Helix 25‘s navigation data, forcing her to reconsider everything she trusts.

Kai Nova – A maverick pilot burdened by duty yet sidelined by automation. Frustrated by Helix 25’s self-repairing systems and Synthia’s control, he remains on standby for crises where human instincts are required. But as he digs deeper, he realizes the ship may not be as self-sustaining as it claims—and its course is anything but […]

Anuí Naskó – A high-ranking member of the Lexicans, enigmatic and unreadable. They believe history must be rewritten and challenge the established narratives on the ship.

Zoya Kade – A half-scientist, half-mad prophet, and collector of lost knowledge. She believes the ship’s true mission has been lost and is determined to reclaim the past—whether others like it or not.

Victor Holt – A former elite passenger now in cryo sleep. A relic of the ship’s old leadership, his influence lingers, and his past decisions continue to shape events.

Riven Holt – Grandson of Victor Holt, raised aboard Helix 25, acting as an enforcer of order in the ship’s hierarchy. Inspired by his grandfather’s legacy, he takes an authoritative stance on security but is untested in actual crisis situations.

Finkley is a no-nonsense crew member who alerts Ellis Marlowe to the murder and encourages him to revisit his postcard collection. She can be seen as his part-time care-taker and confidente, while she enjoys a part-time work as the upper-decks cleaner to keep her active.

Mikhail – A pragmatic survivor, deeply aware of the dangers awaiting them beyond the asylum walls.

Vera – A historian-turned-genealogist, convinced of the importance of lineage even in a collapsed world.

Jian – A quiet but resourceful man, with tech knowledge that may prove useful beyond the asylum.