நண்பன்

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

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