நண்பன்

Ileana D'Cruz as Ria Santhanam S. J. Suryah as Panchavan Pariventhan Sathyan Sivakumar as Srivatsan (Silencer) Anuya Bhagvath as Shwetha Santhanam Manobala as Librarian Bose Uma Padmanabhan as Mrs. Ramakrishnan Sathyaraj as Virumandi Santhanam (Virus) Atlee as Appearance in “Asku Lasku” Song T.M. Karthik as Rakesh 'Price Tag' Ajay Rathnam as Panchavan Pariventhan's father விஜய் as Panchavan "Pari" Pariventhan / Kosaksi "Pappu" Pasapugazh Indrans as Govindan Balaji Venugopal as Ragging Senior Jiiva as Sevarkodi Senthil Srikanth as Venkat Ramakrishnan Andrea Jeremiah as Ria Santhanam (voice) Adukalam Naren as Ramakrishnan

Chetan Bhagat Novel Viveka Lyricist Farah Khan Choreographer Pa. Vijay Lyricist Vijay Prakash Playback Singer Chinmayi Sripaada Playback Singer Na. Muthu Kumar Lyricist Abhijat Joshi Original Story Vidhu Vinod Chopra Original Story Rajkumar Hirani Original Story Krish Playback Singer Harris Jayaraj Original Music Composer Madhan Karky Dialogue, Lyricist Sunidhi Chauhan Playback Singer Shankar Director, Dialogue, Screenplay T. Muthuraj Art Direction Javed Ali Playback Singer Atlee Assistant Director Anthony Editor