Kamal Haasan
— Vishwanathan / Major Wisam Ahmad Kashmiri
Rahul Bose
— Omar Qureshi
Pooja Kumar
— Dr. Nirupama
Andrea Jeremiah
— Ashmita Subramaniam
Shekhar Kapur
— Colonel Jagannath
Waheeda Rehman
— Wisam's Mother
Ananth Narayan Mahadevan
— Easwar Iyer
Jaideep Ahlawat
— Salim
Deepak Jethi
Russell Geoffrey Banks
— Jim
Jude S. Walko
— Captain Joe Black
Mir Sarwar
Nassar
— Nassar
Abhirami
— Nirupama Wisam (Voice)