நண்பன்

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

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