Saamy

A charismatic police officer who rises to DCP of Tirunelveli. He enforces a tough, do-not-hesitate approach to criminals and leverages an unorthodox policy of accepting bribes from influential people to fund public welfare, while declaring that corruption will not harm the innocent. His backstory reveals a father who dreamed of a clean police career and a personal willingness to bend rules for the greater good.

A college-going Brahmin girl who falls in love with Aaruchamy. She initially misreads the police as thieves, but comes to understand his true mission and stands by him. Her romance anchors the personal stakes of the fight against crime, reflecting societal expectations and family dynamics in Tamil Nadu.

An influential and corrupt politician who controls a network of illicit activities and uses his power to oppose Saamy. He schemes to maintain control over Tirunelveli and disrupt public life, becoming the central antagonist of the story.

A farmer who dreams of his son becoming a cop and sacrifices property to secure the police job. His unwavering support for Saamy underscores the personal cost of fighting corruption, and he ultimately dies in the bombing that targets Saamy’s household.

Bhuvana’s father, a government officer who upholds noble values and supports his daughter's relationship with Saamy. He embodies integrity within civil service and provides a counterbalance to the film’s political corruption.

A powerful politician who heads a network of influence and serves as a key pillar of the criminal enterprise supported by Perumal. He wields political authority to protect his interests and challenge Saamy.

A loyal enforcer for Annachi, providing muscle and carrying out threats and violence essential to maintaining the empire’s grip on Tirunelveli.

A police officer who interacts with Saamy and embodies the bureaucratic and political pressures surrounding law enforcement. He represents the ordinary policeman caught in a system shaped by corruption and reform.