Ajay Devgn

Character: Michael Mukherjee

Abhishek Bachchan

Character: Lallan Singh

Vivek Oberoi

Character: Arjun Balachandran

Rani Mukerji

Character: Sashi Biswas Singh

Kareena Kapoor Khan

Character: Meera

Esha Deol

Character: Professor Radhika

Om Puri

Character: Prosenjit Bhattacharya

Anant Nag

Character: IAS Avinash Balachandran

Vijay Raaz

Character: Dablu

Sonu Sood

Character: Gopal Singh

Saurabh Shukla

Character: Dr. Gopal

Karthik Kumar

Character: Vishnu

Abhinav Kashyap

Character: Trilok

Paras Arora

Character: Arun Balachandran

Loveleen Mishra

Character: Shobha

Tanushree Chakraborty

Character: Arjun's Classmate

Simran

Character: Michael's Friend

Lekha Washington

Character: Girl at Embassy