Annan Thambi

Twin brothers whose rivalry fractures their family and drives the story. Appu is impulsive and hot-headed, while Achu is naïve and speech-impaired, making their paths diverge yet bind them together. As adults, Appu becomes a magnetic gangster whose actions spiral toward tragedy and eventual vengeance. The brothers’ bond and misunderstandings propel most twists and the final confrontation.

The astrologer whose prediction to separate the twins seeds decades of conflict. His involvement foreshadows the idea that fate can steer lives more than personal choices. He survives long enough to cast a shadow over the brothers’ actions, and his death triggers a chain of revelations. His role is pivotal as the catalyst for the siblings' lifelong feud.

The woman who captures Appu’s heart and becomes a victim of the ensuing turmoil. Her death acts as a turning point that intensifies the brothers’ conflict and invites the possibility of revenge. She represents love and vulnerability within a world of violence. Her memory haunts the protagonists as they seek the truth.

Madhavan's son who aligns with enemies to frame Achu for Thenmozhi’s death. He feigns loyalty while orchestrating betrayals, complicating the brothers' attempts to clear their names. His actions are driven by ambition and resentment, making him the principal antagonist behind the false accusations. His exposure comes through a revelation that shifts the balance of power.

A rival and enemy who manipulates events to keep the brothers at odds. He embodies the external forces pressing on the brothers, intensifying the feud. His antagonism culminates in key confrontations and the struggle for control over their shared world. He is the human obstacle to peace.

The father and ballet artist who splits the twins to keep peace, sowing the seeds of lifelong separation. His decisions shape the brothers’ divergent paths and the eventual inability to reconcile. He embodies tradition and the heavy toll of family pride. His actions set the movie’s emotional core.

Achu’s wife who anchors the family amid turmoil and serves as a voice of reason. Her loyalty and resilience provide a counterpoint to the violence around her. She represents stability and the hope for a peaceful future beyond the feud. Her presence grounds Achu’s personal stake in the ongoing conflict.