Venugopal, usually called Venu, is a kindhearted entrepreneur and aging bachelor seeking an arranged marriage. He is open about his mental health issues and stammer, and takes the blame when Vidhya elopes to spare her family humiliation. Inspired by Nedumaran and Thamizhisai, he later encourages Gayathri to choose Gunasekhar and ultimately decides to marry Ranjitha.
Nanda is a musician trapped in an unhappy marriage to Indhu while loving Lavanya. After Arjun causes Indhu's death, Nanda is drawn into his murder scheme, but withdraws after discovering Devarajan's kindness and learning that Arjun distorted Linda's story. He ultimately confronts Arjun to protect Lavanya.
An advertising agency owner who travels by train to invite friends and family to his wedding. Along the way, he revisits memories of his teenage first love, Kamala, and his later relationships with Lathika and Divya. His journey leads him to reflect on the past before he marries Thenmozhi, the bride chosen by his parents.
J.K. is a Senior Inspector in the CB-CID and the film's central investigator. He leads the inquiry into mutilated body parts while privately searching for his missing sister, Charu. His investigation exposes the kidnapping racket and the conspiracy surrounding the Purushotaman family, eventually leading him to confront Thirisangu and protect Nishant.
A philanthropist running a prison rehabilitation center named Punnagai. Impressed by Mallika's successful work, he entrusts her with the center's management and departs the town.
Muthupandi is Kasi's half-brother and is deeply affectionate toward him, even employing Kasi's son Sakthi in his lorry business. He offers his land for a home intended for the whole family. After he is injured and construction stops, he reveals that Kasi once saved him after his gambling caused him to misuse temple funds, inspiring the family's reconciliation.
A marine engineer from Calcutta who secretly falls in love with Nadira and mails her letters monthly for years. After she relocates, he eventually marries another understanding woman, but his unspoken love and hidden letters become the central mystery that drives his son's journey.
Muthaiah's second son, Ramalingam narrates the story through memories of his childhood and life with his father. As an engineering student, he falls in love with Vasanthi, and they elope when an accidental pregnancy leaves them afraid to tell their families. He struggles financially as a young husband and father, later builds a career, supports his parents, and helps reunite the family.
A member of the laundering community, Chinnasamy lives with his mother, wife, and sister and performs washing and funeral rites for villagers. He values education and seeks government employment, but after discrimination repeatedly harms his prospects, he starts a dairy business. He challenges the expectation that he must perform rites, wins legal recognition of his choice, and proudly identifies his son as Tamilkudimagan.
A traffic constable returning to duty after a bribery suspension. He volunteers to drive the critical 150-kilometer heart transport mission in a Ford Endeavour to restore his reputation. Using his experience from chauffeuring the Chief Minister, he navigates rush hour traffic, takes independent routes when disconnected, and successfully delivers the heart to the hospital.
Cheran has 65 screen credits in a career dating back to 1990. Their work is anchored in the Chennaiyil Oru Naal Collection universe with 1 titles. Signature works include Raman Thediya Seethai, Appavin Meesai, Muran. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.
Related entry on Wikidata (Q3523441), public domain (CC0).
