Gunaa

An asylum inmate with expert lock-picking skills, Gunaa is defined by an obsessive devotion to Abhirami. His belief that she is a goddess avatar drives him to commit crimes and persevere through danger, even as he longs for a normal life with Rohini.

A wealthy heiress whose life becomes entangled with Gunaa. She moves from suspicion to a wary acceptance of Gunaa's love, and her name becomes tied to his idealized Abhirami. Her eventual fate reveals the fragility of their romance.

Rohini's guardian and a calculating antagonist who uses wealth and influence to control her. He engineers threats and coercion to hide criminal acts, and he targets Rohini to protect his own money and power.

A psychiatrist who authorizes Gunaa's release after his psychiatric evaluation. He embodies the medical authority that both pathologizes and enables Gunaa's fragile mind.

A brothel worker who loves Gunaa and hopes to marry him. Her loyalty and affection for Gunaa persist even as he is pulled into dangerous schemes.

Gunaa's mother who runs a brothel to survive after her husband deserts her. She navigates a world of poverty and danger with a wary pragmatism.

The loyal yet opportunistic uncle who helps plan thefts and profit from their misdeeds. His complicity highlights family ties entangled with crime.

A landlord and criminal ally who aids the gang's operations and exploits Rohini for money. His greed triggers a deadly chain of events.

A CBI officer investigating the heiress's disappearance, whose pursuit drives the plot toward confrontation with Gunaa and Suresh Kumar.

The inspector who relentlessly pursues Gunaa, eventually issuing a shoot-on-sight order. His pursuit underscores the law's pursuit of violence.

A fellow inmate who appears in Gunaa's backstory and contributes to the sense of confinement and danger surrounding Gunaa.