Thadam

A brilliant civil engineer from IIT Madras who hides a darker, violent streak. He shares a complicated bond with his lookalike Kavin and becomes entangled in a web of love, crime, and revenge. His past actions, including a brutal act to protect Deepika, drive the central mystery and his reluctant path toward reconciliation.

A gambling thief who mimics Ezhil’s appearance, using deception to survive and manipulate those around him. He is impulsive and pragmatic, stepping into danger to help Suruli and to protect his own interests, yet shows flashes of loyalty and vulnerability. His rivalry with his brother unfolds into a search for belonging and restitution.

An IT professional and the love interest of Ezhil. Her past with Akash becomes the motive for action, and her fate is entwined with the twins’ attempts to protect her. She embodies the fragility of trust and the impact of trauma on relationships.

A devoted young woman who loves Kavin and initially trusts him with her money. Her empathy allows her to see beyond deception, and her eventual realization contributes to the narrative’s moral complexity. She represents loyalty and emotional resilience.

A debt-ridden sidekick who thrives on mischief and street-smart schemes. His escapades drive some of the early tension and events, and his bond with Kavin adds a layer of uneasy humor to the thriller. He embodies resilience amid precarious circumstances.

An inspector with a long-standing rivalry with Ezhil, prone to torture and manipulation in pursuit of his own version of justice. He epitomizes the corrupt or morally compromised detective who tries to control the narrative. His schemes create obstacles for the protagonists.

A determined inspector who interrogates both twins and ultimately uncovers destabilizing truths. She disciplines the investigation with persistence, but her own career is compromised by manipulation and fake witnesses. She embodies the tension between rule-bound inquiry and personal ambition.

A man whose murder becomes the central catalyst of the mystery. He is tied to Deepika’s tragic backstory, and his actions and crimes haunt the investigation as investigators probe the past. His fate reveals the darker side of the plot’s crime network.