Catenicus is the version of Vis Telimus living in the Republic of Res. The adopted son of a Military senator, he hides his true identity as a conquered prince while secretly working with a resistance group. Following a deadly trial, he enters Governance with a missing arm. He relies on his intelligence and new Will abilities to survive the dangerous politics of Res.

Siamun is the version of Vis who awakes in Obiteum following the Labyrinth trial. He possesses the unique ability of Adoption, allowing him to control the Will of others. Horrified by the practices of this world but determined to stop an impending disaster, he trains to infiltrate the heavily guarded city of Duat.

Deaglan is the version of Vis existing in the clan-based world of Luceum. Initially unaware of the parallel worlds or his unique abilities, he desires a peaceful life away from conflict. He must adapt to a foreign language and warrior culture while forming new bonds.

Relucia is Ulciscor's wife and a covert member of the Anguis resistance. Having survived brutal punishment in her youth, she maintains a hardened perspective on violence and revolution. She views the oppressive system of the Hierarchy as the true evil that justifies extreme measures.

Aequa is a highly capable student from the Academy who shares the trauma of a past disaster with Catenicus. Resourceful and sharp, she serves as one of Catenicus's most reliable allies in managing the dangerous factions of Res.

Eidhin is a Cymrian student attending the Academy under duress from the Republic. He lives by a strict moral code and believes every person has a boundary they must not cross. His outsider status forms the foundation of his strong bond with Catenicus.

Caeror is Ulciscor's brother who exists in Obiteum. Despite living in a dangerous environment, he maintains a relentless optimism. He serves as Siamun's primary mentor and teaches him about the mechanics of Will to stop a coming disaster.

Ulciscor is a Military senator in the Republic of Res. As Catenicus's adoptive father, he expects cooperation and obedience. He maintains a stern exterior while participating in the volatile politics of the capital.

Veridius is the principal of the Academy on Solivagus. He possesses deep knowledge about ancient history, parallel worlds, and the true nature of Will. He often acts as a gatekeeper of dangerous secrets.

Ka is a mysterious and highly powerful entity who rules the city of Duat in Obiteum from a hidden pyramid. He is believed to be responsible for cyclical apocalyptic events and commands a vast network of reanimated servants.

Ostius is a mysterious operative for the Anguis resistance who possesses the rare ability to shift between different worlds. He acts as Catenicus's handler. He displays a ruthless pragmatism in his efforts against the Republic.

Ahmose is a reanimated individual, or iunctus, living in the city of Duat. Cautious and aware of his vulnerable status, he provides Siamun with crucial information about the city's structure while offering companionship in an otherwise hostile world.

Netiqret is a focused and unflappable assassin operating in the city of Duat. She leverages her lethal skills to survive and provides Siamun with access to secure areas. Her assistance comes with specific demands of her own.

Lir is a pragmatic druid associated with King Ronan's court in Luceum. Recognizing Deaglan's potential for combat, he actively directs the young man's path. He blends spiritual authority with political maneuvering.

Tara is King Ronan's daughter and the most skilled fighter among the students at Loch Treanala. Having lost her succession rights due to a facial scar, she dedicates herself to becoming a formidable warrior and leader of her warband.

Emissa is a former classmate of Catenicus who previously betrayed him. Working closely with Veridius, she attempts to mend her fractured relationship with Catenicus by offering access to sensitive military information.

Ruarc is a powerful druid who breaks traditional vows of neutrality to support a coup in Luceum. He harbors intense hostility toward individuals arriving from specific locations. He actively hunts Deaglan across the country.

Decimus is a rigid and combative figure in the Republic. He views Catenicus's physical injury as a weakness and uses his influence to demand public tests of strength, driven by his own sense of pride and grief.

Iro is a former classmate of Catenicus. Pressured by his father's demands, he participates in a high-stakes chariot race that tests his abilities and his willingness to engage in aggressive tactics.

Diago is an alupi, a large, intelligent wolf-like creature. He displays fierce loyalty to Catenicus, serving as a protector and scout during dangerous excursions.

Grainne is a farmer in Luceum who rescues Deaglan from a violent raid. She provides him with shelter, care, and an introduction to the local language and customs.

Gallchobhar is a massive warrior who initially serves as a champion. Aggressive and ambitious, he utilizes Will in combat and frequently challenges those he deems unworthy.

Cristoval is Catenicus's father and the former ruler of a conquered kingdom. He prioritized his family over political gain. He possessed dangerous knowledge regarding ancient history and the true nature of the Republic.

Lanistia is Ulciscor's second-in-command and Catenicus's former trainer. She experiences terrifying moments of lost autonomy, becoming a pawn in a larger conflict despite her combat prowess.

Baine is Eidhin's father and a subordinate to a cruel military senator. Driven entirely by the need to protect his family, he is willing to compromise his moral code to ensure his son's safety.

Ronan is a regional king in Luceum who commands loyalty from his subjects. He faces political instability and war as rival factions challenge his authority.

Kiya is a young reanimated individual accompanying Netiqret. She serves as a crucial link to the complex information network that controls the city of Duat.

Conor is a student warrior training at Loch Treanala. He quickly accepts Deaglan into their group, fostering a supportive environment focused on teamwork rather than competition.