Mohanlal
Anandan
Prakash Raj
Tamil Selvam
Aishwarya Rai Bachchan
Pushpavalli / Kalpana
Gautami Tadimalla
Ramani
Revathi
Marathagam
Tabu
Senthamarai
Nassar
Ayya Veluthambi
Kaaka Radhakrishnan
Kasi
Major Sundarrajan
Police Officer
Rajesh
Madhivanan
Delhi Ganesh
Nambi
Nizhalgal Ravi
Ramani's uncle
Kalpana Iyer
Anand's Mother
S. N. Lakshmi
Tamizhselvan's Mother
Gowtham Sundararajan
Arivazhagan
Sujitha
Tamizhselvan's Daughter
Vishnu Varadhan
Tamizhselvan's Son
Monica
Manimegalai,Tamizhselvan's daughter
Laxmi Rattan
Arjun Doss
C. K. Saraswathi
P. L. Narayana
Ramaswamy
Cheenu Mohan
Assistant Director
Madhoo
Cameo appearance in song Narumugaye
Rohini
Pushpavalli / Kalpana (voice)
Mani Ratnam
Director
Farah Khan
Choreographer
Suhasini Maniratnam
Screenplay
Santosh Sivan
Director of Photography
Suhasini Maniratnam
Dialogue
Mani Ratnam
Producer
A.R. Rahman
Original Music Composer
Suhasini Maniratnam
Executive Producer
Suresh Urs
Editor
Susi Ganesan
Assistant Director
AS Laxmi Narayanan
Sound Mixer
Mani Ratnam
Screenplay
V. Priya
Assistant Director
Mani Ratnam
Story
AS Laxmi Narayanan
Sound Designer
Samir Chanda
Art Direction
G. Srinivasan
Producer
Sandhya J. K.
Playback Singer
Rajagopal
Playback Singer
P. Unnikrishnan
Playback Singer
Arvind Swamy
Playback Singer
Harini
Playback Singer
Mano
Playback Singer
A.R. Rahman
Playback Singer
Vairamuthu
Lyricist
Dominique Cerejo
Playback Singer
Bombay Jayashri
Playback Singer
Asha Bhosle
Playback Singer
S. P. Balasubramaniam
Playback Singer
Vairamuthu
Poem
Hariharan
Playback Singer