இருவர்

Aishwarya Rai Bachchan as Pushpavalli / Kalpana तबु as Senthamarai Delhi Ganesh as Nambi Nizhalgal Ravi as Ramani's uncle S. N. Lakshmi as Tamizhselvan's Mother Gowtham Sundararajan as Arivazhagan Vishnuvardhan as Tamizhselvan's Son Monica as Manimegalai,Tamizhselvan's daughter Gautami Tadimalla as Ramani Revathi as Marathagam Nassar as Ayya Veluthambi C. K. Saraswathi Cheenu Mohan as Assistant Director Madhoo as Cameo appearance in song Narumugaye Prakash Raj as Tamil Selvam Rajesh as Madhivanan Kalpana Iyer as Anand's Mother Sujitha as Tamizhselvan's Daughter Rohini as Pushpavalli / Kalpana (voice) Mohanlal as Anandan Major Sundarrajan as Police Officer

Suresh Urs Editor Farah Khan Choreographer Harini Playback Singer P. Unnikrishnan Playback Singer Bombay Jayashri Playback Singer Mano Playback Singer Arvind Swamy Playback Singer Suhasini Maniratnam Screenplay, Dialogue, Executive Producer Hariharan Playback Singer Dominique Cerejo Playback Singer Mani Ratnam Director, Screenplay, Story, Producer A.R. Rahman Original Music Composer, Playback Singer Santosh Sivan Director of Photography Susi Ganesan Assistant Director Asha Bhosle Playback Singer Samir Chanda Art Direction Vairamuthu Lyricist, Poem S. P. Balasubramaniam Playback Singer