Naan

A brilliant student whose early acts reveal a propensity for manipulation. After discovering his mother’s affair and his father’s suicide, he channels his trauma into calculated moves. He steals Salim’s documents after a bus accident and adopts Salim’s identity to enter a government medical college, then impersonates Ashok to maintain the lie. He commits further killings to protect the deception, ending on a cliffhanger.

The passenger whose identity Karthik steals after a bus accident, setting the impersonation plot in motion. His life is cut short, and his documents enable Karthik to enroll in college and navigate his crimes under a false name. Salim’s absence becomes the catalyst for Karthik’s duplicitous ascent.

A wealthy, trusting classmate who welcomes Salim into his circle. He becomes suspicious as the lie deepens and later discovers a photo that unsettles Karthik’s claimed lineage. His confrontation with the truth leads to a fatal outcome at Karthik’s hands.

Ashok’s friend who grows suspicious of Karthik’s true identity. He is killed by Karthik and buried in the same graveyard as Ashok, intensifying the investigation and suspicion around the impostor.

Ashok’s girlfriend, whose sincere concern for Ashok makes her wary of his new friend. She senses inconsistencies in the relationship and becomes entangled in the deception as the truth edges closer.

Her affair with a neighbor becomes the catalyst for Karthik’s troubled childhood, leading to his father’s suicide and his later distrust of family secrets. She pleads with him not to reveal the affair, a choice that haunts him for years.

The juvenile home warden who recognises Karthik’s deception when they cross paths again. He embodies authority and the scrutiny that follows the impostor as he navigates between rules and hidden truths.