R. Madhavan
Nambi Narayanan
Suriya
Suriya
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
Shyam Renganathan
Shankar Narayanan
Karthik Kumar
P. M. Nayar
Mohan Raman
Udupi Ramachandra Rao
Sriram Parthasarathy
Barry Amaldev
Bijou Thaangjam
Studio Personnel
Rajeev Ravindranathan
Param
Sam Mohan
Unni
Bhawsheel Singh Sahni
Sartaj
Jack Dimich
Professor Eugene Scott
Karina Matas Piper
Michelle
Gaurav Venkatesh
Studio Personnel
James Eliya
Unni's Father in law
Shah Rukh Khan
Shah Rukh Khan
Muralidaran
Arunan