Rocketry: The Nambi Effect is based on the life of Nambi Narayanan, a former aerospace engineer from the Indian Space Research Organization who was accused of espionage.
- Madhavan as Nambi Narayanan [Rocket Scientist]
- Shah Rukh Khan as a journalist
- Suriya as a journalist
- Simran as Meena Nambi Narayanan [Wife of Nambi Narayanan]