Azhagi

A compassionate veterinary doctor whose past love for Dhanalakshmi resurfaces as his family faces strain. He balances professional duty with a duty to protect his wife and children, often wrestling with memories that blur the line between past romance and current commitments. His patience is tested as he navigates jealousy and the fear of losing his family.

A widow living in poverty with her son Balu, who takes up domestic work in Shanmugam's house to survive. Her return into the family life unsettles the balance, yet she harbors no intention to disrupt the family; she seeks happiness for Valarmati and Shanmugam from afar. Her decision to leave quietly demonstrates a sacrificial, selfless love.

Shanmugam's wife whose fear of losing him drives her to humiliating Dhanam, revealing insecurity and fragile trust within the marriage. Her jealousy tests the strength of family bonds and forces introspection about what truly constitutes loyalty. She must confront her own assumptions to find a path toward forgiveness and unity.

Dhanam's son, adopted by Shanmugam, who calls him 'Sir' and longs for a stable home. He embodies innocence and a child's trust in family, choosing to stay with his caretaker's family rather than return to his mother immediately. His presence shapes the parents' decisions and highlights the power of chosen family.