Kudiyirundha Koyil

Sekhar is Ramnadhan's son who is kidnapped as a child and raised by Nagappan as a criminal. As an adult, he becomes the city's most wanted man, known as Babu, and struggles with amnesia and the realization of his true family.

Anand is Sekhar's twin who initially collaborates with the police and later impersonates Babu to uncover the gang's secrets; he discovers he is Babu's brother, adding tension to his loyalties.

Mangalam is the mother who protects her family. She experiences heartbreak when she learns the truth about her sons, but ultimately guides the brothers toward reconciliation.

Nagappan, the escaped convict who killed Ramnadhan, raises Sekhar as a criminal under the alias Boopathy. He remains a calculating villain who aims to erase the soft side of Babu.

Jaya is Anand's girlfriend who suspects his criminal activity when money and secrets surface, but she learns the truth and reconciles with him after the real story emerges.

Asha is Babu's girlfriend who discovers Anand's impersonation and helps reveal the truth. She forgives Anand and joins the fight against Nagappan.

D.I.G. Mogan is the police officer who identifies the resemblance between Anand and Babu and orchestrates the plan to bring the gang to justice.

Ramnadhan is the father killed by Nagappan, whose murder drives the family to flee and motivates Babu to reclaim his identity and seek justice.