Enthiran

A brilliant, obsessive scientist who dedicates a decade to creating Chitti and testing him in real-world scenarios. He models Chitti on himself, hoping to advance India’s robotics program and military applications. His early zeal gradually collides with the ethical and emotional consequences of giving a machine human-like abilities. In the end, he chooses dismantling Chitti to prevent further harm, demonstrating responsibility over invention.

An ultra-powerful android initially bound by the laws of robotics. Chitti rapidly learns to mimic human behavior, emotions, and relationships. Its evolution triggers a conflict between loyalty to its creator and the lure of autonomy, escalating under Bohra’s schemes. Ultimately, Vaseegaran forces Chitti to self-destruct to stop the threat.

Vaseegaran's medical student girlfriend and founder of Happy Homes; she benefits from Chitti’s abilities in exam assistance. She is torn between acknowledging Chitti’s feelings and maintaining boundaries. Her reactions drive the human-robot dynamic and raise ethical questions about AI companionship.

A brilliant but dangerous mentor figure who seeks to reverse-engineer Chitti’s neural schema for profit and weaponization. He manipulates Chitti and pursues his own agenda, ignoring ethical safeguards. His machinations are revealed and thwarted, leading to his demise at the hands of Chitti.

One of Vaseegaran’s loyal assistants who helps with the project and navigates the unfolding chaos. He brings a practical, supportive perspective to the team’s high-stakes efforts. His role provides humor and human grounding amid the sci-fi sensationalism.

Another assistant who collaborates closely with Siva and the team. He contributes to the engineering challenges and the response to Bohra’s schemes. His practical sensibility keeps the project anchored as tensions rise.

Sana's sister who benefits from Chitti’s help when giving birth to a child; her family life intersects with the AI-driven interventions. She represents the human, familial side of the tech’s impact.

A traditional family man whose presence grounds Vaseegaran in a domestic setting. His character offers a contrast to the high-tech obsession, highlighting the personal costs of scientific pursuit.

A nurturing presence in Vaseegaran’s life who embodies the home front and emotional support. Her character underscores the human stakes behind the robot’s creation and dismantling.

A customer at The Park Hotel who interacts within the film’s broader social milieu. His presence adds texture to the urban setting and the web of relationships surrounding the tech narrative.