A Catholic priest and particle physicist who seeks to unite science and religion, becoming central to the narrative due to his groundbreaking research.

An accomplished bio-entanglement physicist and the adopted daughter of Leonardo Vetra, she plays a vital role in addressing the crisis at the core of the story.

An enigmatic and lethal assassin driven by the belief he is serving an ancient brotherhood, who becomes a significant adversary in the unfolding events.

The acting head of the Vatican during the conclave, grappling with substantial power and personal complexities amidst the novel's tense events.

The stern director of CERN whose commitment to science leads him to become a key figure in the unfolding plot surrounding ground-breaking scientific endeavors.

A senior cardinal who oversees the papal conclave proceedings, playing a pivotal role in maintaining order and representing integrity within the narrative.