Athiran

A psychiatrist who arrives to inspect the secluded asylum and becomes entangled with Nithya as he uncovers troubling secrets. He pursues the truth about Nithya's past, confronts deception, and ultimately seeks to stop the impostor Vinayan, showing resolve to safeguard the patient. His perspective drives the investigation and fuels the film's twists.

The chief doctor at the asylum who defends controversial methods and manipulates patients for his own ends. He clashes with Nair and harbors hidden motives, orchestrating questionable treatments and personal entanglements that propel the conflict within the hospital.

A central patient with extraordinary reflexes and a mysterious past tied to royal lineage. Initially perceived through the lens of a dangerous, autistic impression, her memories and history become the key to unveiling the asylum’s secrets. She evolves as the focal point around which truth and deception revolve.

A patient who impersonates Dr. Nair and harbors an obsessive interest in Nithya. His schizophrenia and delusions drive the plot’s twist, revealing a dark chain of murders and layered deceit. He embodies the unreliable reality that permeates the asylum.

Nithya’s aunt who appears in memories and diaries; her presence links Nithya to a aristocratic past. Her implied death and the memory of her influence contribute to the mystery surrounding Nithya’s history.

The caretaker of the asylum who knows its sprawling maze and secrets. She provides essential context about the building and acts as a witness to the unsettling events inside its walls.

A royal from Nadakkal Kovilakam whose history with Nithya ties the present to a long-standing lineage. His memory anchors the family’s past and informs the motivations behind protecting Nithya.

A member of the royal lineage connected to Nithya’s ancestry, referenced through diaries and memories. His presence underscores the intersecting fates of the family and the asylum’s hidden past.

A nurse at the asylum who becomes entwined in the hospital’s personal dynamics and in the broader secret world surrounding Dr. Benjamin. Her role contributes to the complex web of loyalties and secrets within the facility.