Pham is a revived human from the Slow Zone who claims to be an interstellar trader from a lost civilization called the Qeng Ho. The Vrinimi Organization reconstructed him from ancient human remains. He exhibits a confident exterior but harbors deep existential doubts about the authenticity of his memories and his true purpose as an emissary for the Transcendent Power known as Old One.

Ravna is a human librarian from Sjandra Kei working at the Relay communications hub. She possesses strong empathy and a deep curiosity about the broader galaxy. Following the catastrophic fall of Straumli Realm, she takes on the immense responsibility of communicating with a stranded human child and coordinating a dangerous rescue mission into the Slow Zone.

Peregrine is an ancient, curious Tine whose pack mind originally consists of four dog-like members. As a pilgrim, he maintains an adaptable personality capable of surviving the violent loss and integration of new members. He serves as a critical bridge between his pre-industrial society and the newly arrived human survivors.

Lord Steel is the sadistic ruler of the Flenserist movement on Hidden Island. He is a deliberately engineered Tine pack, crafted by his master to lack a conscience and ruthlessly pursue power. He presents a false facade of kindness to his human captive while secretly plotting to steal alien technology and conquer the world.

Johanna is a resourceful human teenager whose family flees the High Lab disaster and crash-lands on a pre-industrial planet. She suffers severe trauma during an ambush by Flenserist forces but learns to adapt to her alien surroundings. She uses her educational dataset to provide advanced technological knowledge to the progressive Woodcarver faction.

Jefri is an eight-year-old human boy who survives a brutal ambush and becomes a captive of the Flenserist regime. Unaware of the true nature of his captors, he trusts Lord Steel and befriends a pack of puppies. His access to his family's communication equipment makes him the vital link between the planet and an incoming rescue ship.

Woodcarver is a 600-year-old queen who rules a progressive, art-focused city-state on Tines World. She has maintained her continuous identity for centuries through careful breeding, though this practice has caused severe physical deterioration. She shifts from philosophical pacifism to military pragmatism to defend her people from the aggressive Flenserist faction.

Scriber is a naive but intellectually curious Tine pack from a wealthy merchant family who fancies himself a spy. His head is filled with theoretical inventions and grand ideas rather than practical experience. Despite his comedic aspirations, his decision to rescue an unconscious alien significantly alters the political situation on Tines World.

This composite Tine pack suffers from a violent internal conflict between the timid personality of a teacher and the ruthless brilliance of the tyrant Flenser. While the pack masquerades as Flenser reborn, the underlying personalities constantly battle for control over their shared body and strategic decisions. This internal division makes the pack highly unpredictable as they manipulate the political factions of Hidden Island.

Old One is a godlike superintelligence from the Transcend who takes a keen interest in the reawakened Blight. Operating on a level of intelligence incomprehensible to standard humans, the entity fabricates agents and orchestrates vast galactic strategies to counter the ancient threat.

The Blight is a malevolent, five-billion-year-old superintelligence accidentally revived by researchers. As a "Class Two Perversion," it seeks to consume civilizations and assimilate entire populations into its teleoperated network, presenting an existential threat to the entire galaxy.

Blueshell is a plant-like Skroderider who utilizes a mechanical, wheeled mount for mobility and short-term memory. He operates as a cautious but decent interstellar trader. Recognizing the immense danger of the reawakened superintelligence, he agrees to pilot the rescue ship toward the restrictive physics of the Slow Zone.

Greenstalk is an empathetic, plant-like Skroderider who relies on her mechanical skrode to interact with the broader galaxy. She possesses a quieter demeanor than her mate but shares his commitment to aiding the stranded refugees. She bravely advocates for undertaking the highly dangerous rescue mission.

Arne is a human researcher from Straumli Realm who flees the awakening superintelligence with his family. He successfully lands his unshielded craft on a medieval world but is immediately forced to defend his family from a coordinated alien ambush.

Sjana is a researcher and mother who attempts to guide her children to safety following the disaster at the High Lab. She works desperately to protect the cryogenically frozen children during the chaotic landing and subsequent attack.

Amdiranifani, often called Amdi, is a specially bred pack of eight Tine puppies conditioned for mathematical talent. He mimics human speech perfectly and forms a fast friendship with Jefri, innocently acting as a translator and bridge between the human child and the manipulative Lord Steel.

Vendacious is Woodcarver's pompous Lord Chamberlain and security chief. Though he publicly serves his mother's progressive regime, he operates a covert network of spies and assassins to further his own hidden agendas and secure power.

Scrupilo is one of Woodcarver's offspring and serves as her chief gunner and scientific investigator. He displays an open-minded willingness to test heretical theories about alien intelligence and works diligently to reverse-engineer advanced weaponry.

Grondr is a high-ranking official within the Vrinimi Organization at Relay. He manages the communications hub's commercial interests and attempts to balance the impossible demands of a Transcendent Power against his organization's financial future.

Kjet is a Group Captain leading a loyalist faction within the surviving Sjandra Kei military. He commands the Ølvira and makes difficult tactical decisions to intercept enemy vessels during a massive technological failure in space.