நண்பன்

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

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