On screen
Cast
27 credited performers
R. Madhavan
Nambi Narayanan
Simran
Meena
Misha Ghoshal
Geeta Narayanan
Jagan
Scientist
Dinesh Prabhakar
L. D. Gopal
Ron Donachie
Col. Cleaver
Vincent Riotta
Luigi Crocco
Phyllis Logan
Mrs Cleaver
Gulshan Grover
A. P. J. Abdul Kalam
Ravi Raghavendra
Vikram Sarabhai
Artwork unavailable
Shyam Renganathan
Shankar Narayanan
Artwork unavailable
Karthik Kumar
P. M. Nayar
Mohan Raman
Udupi Ramachandra Rao
Artwork unavailable
Sriram Parthasarathy
Barry Amaldev
Bijou Thaangjam
Studio Personnel
Rajeev Ravindranathan
Param
Sam Mohan
Unni
Artwork unavailable
Bhawsheel Singh Sahni
Sartaj
Jack Dimich
Professor Eugene Scott
Karina Matas Piper
Michelle
Artwork unavailable
Gaurav Venkatesh
Studio Personnel
Abhirami Venkatachalam
Boyfriend Girl
James Eliya
Unni's Father in law
Suriya
Interviewer (Tamil version)
Shah Rukh Khan
Interviewer (Hindi version)
Artwork unavailable
Muralidaran
Arunan
Emma Gojković
Elizabeth