Vetri Vizha

Vijay is a wedding-band member who becomes Vetri's ally after saving him from attackers on the Goa coast. He accompanies Vetri and Jaya as they chase clues to Vetri's past, and his street-smarts and fighting skill help foil several assaults. Loyal and resourceful, he stands by Vetri through danger and discovery.

Vetrivel is an undercover IPS officer who wakes with amnesia and must reconstruct his past. Flashbacks reveal a former life chasing Zinda and protecting Lalitha; his bank ledger and hotel memories hint at a double identity. The story follows his resolve to uncover truth while staying alive under constant threat.

Jaya is Vetri's wife who pleads for protection and accompanies him as he seeks his past. She becomes an active ally, supporting Vetri's mission and sharing risks as they uncover his history. Her presence strengthens Vetri's resolve and personal stakes.

Lalitha is Vetri's wife who is drawn into danger; she is abducted by Zinda to draw out the mole and is shot, dying in the ensuing chaos. Her fate acts as a catalyst for Vetri's quest and his vendetta against Zinda.

Zinda is a notorious hitman and Vetri's arch-nemesis who manipulates events from the shadows. He kidnaps their wives to pressure Vetri and engages in brutal confrontations as the plot unfolds. His schemes drive much of the film's action and suspense.

Shirley is a local who rescues the amnesiac Vetri and brings him to her doctor aunt for care. She serves as a catalyst by connecting Vetri to medical help and guiding the investigation through her network.

Shanthi is a singer who becomes a clue-giver; she provides a contact number and helps steer Vetri toward the next lead. Her presence adds a musical, street-smart layer to the story.

Baba Appaji is a popular priest whose safety becomes a target as Zinda plots to assassinate him. Vetri and Vijay work to thwart the plan, underscoring the stakes tied to faith and community.

Nithyanandam is the Deputy Inspector General of Police who becomes a reference point for Vetri's undercover past. He plays a role in the police pursuit and the post-climax revelations.