நண்பன்

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

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