The antagonist, a charismatic and ambitious individual who, like Harry, retains memories of his past lives and is driven by the desire to achieve ultimate knowledge.

A senior member of the Cronus Club who introduces Harry to their kind and later plays a pivotal role in the conflicts within the story.

A government agent and linear mortal who poses a threat to Harry by attempting to exploit his knowledge for nationalistic purposes.

A fellow kalachakra who serves as a friend and confidante to Harry, embracing the pursuit of pleasure while grappling with the psychological burden of immortality.

Harry's biological father, depicted as emotionally distant and emblematic of the past that Harry transcends over his repeated lives.

Harry's adopted father, who provides him with a stable upbringing and instills a sense of moral responsibility, despite his emotionally reserved nature.

Harry's first love, a linear mortal whose relationship with him highlights the emotional disconnect between kalachakra and ordinary humans.

A dedicated member of the Cronus Club who assists young kalachakra and becomes a key figure in the narrative through her loyalty and resourcefulness.