 | Shah Rukh Khan als Amarkanth Varma |
 | Manisha Koirala als Meghna |
 | Preity Zinta als Preeti Nair |
 | Mita Vashisht als Terrorist |
 | Arundathi Nag als Kanval Dev Burman |
 | Raghubir Yadav als Shukla |
 | Zohra Sehgal als Amar's Grandmother |
 | Janagaraj als Taxi Driver |
 | Sabyasachi Chakraborty als Terrorist |
 | Gautam Bora als terrorist Leader |
 | Aditya Srivastava als Terrorist |
 | Sanjay Mishra als Terrorist |
 | Anupam Shyam als Terrorist |
| Shabbir Masani als terrorist |
| Krisn Kant als Kim terrorist |
| Manjit Bawa als Terrorist |
 | Sheeba Chaddha als Amar's Mother |
 | Piyush Mishra als CBI Investigation Officer |
 | Gajraj Rao als CBI investigation officer |
| Priya Parulekar als Young Moina |
 | Malaika Arora als Special Appearance in "Chaiyya Chaiyya" song |
 | Tigmanshu Dhulia als Cameo as Man at the Post Office |
 | Shaad Ali als Cameo as Citizen of Silchar |
| Wasiq Khan als Cameo |
 | Vikram Gokhale als CBI Officer |
 | Deepak Shirke als CBI Officer |
 | Mohan Joshi als CBI Officer |
 | Raza Murad als CBI Officer |
| Hemant Mishra als Cameo |
| Vanitha Malik als School teacher |
| Sameer Chanda als Cameo appearance Tuba music shop dealer |
| Pia Benegal als Cameo |
| B Chintu Mohapatra als Cameo |
| Karan Nath als Cameo |
| B. M. Shah als Cameo |
| R. K. Nair als Preeti's father |
| Alka als Preeti's Mother |
 | Rajiv Gupta als Sub inspector |
| Avtar Sahani als Army general |
| Lakshmi Rattan als Hazarika army official |
 | Suhail Nayyar als Child artist |
| Ishitha als Child artist |
| Subhadeep Sanyal als Child artist |
| Mani Ratnam | Story |
| Mani Ratnam | Director |
| Tigmanshu Dhulia | Dialogue |
| Suresh Urs | Editor |
| Samir Chanda | Art Direction |
| Shaad Ali | Assistant Director |
| Farah Khan | Choreographer |
| Mani Ratnam | Screenplay |
| AS Laxmi Narayanan | Sound Mixer |
| A.R. Rahman | Original Music Composer |
| Santosh Sivan | Director of Photography |
| Susi Ganesan | Assistant Director |
| H Sridhar | Sound Mixer |
| V. Priya | Assistant Director |
| Allan Amin | Stunts Coordinator |
| Ram Gopal Varma | Executive Producer |
| Shekhar Kapur | Executive Producer |
| Shadeesh Kumar | Assistant Editor |
| Kanna Babu | Assistant Editor |
| Mani Ratnam | Executive Producer |
| Janakiraman P | Sound Effects Designer |
| Geeta Kapoor | Associate Choreographer |
| Udhaya Kumar | Sound Effects Designer |
| Jarvis Solomon | Sound Effects Editor |
| Bharat Shah | Producer |
| A.R. Rahman | Playback Singer |
| Febi Mani | Playback Singer |
| Sonu Nigam | Playback Singer |
| Unni Menon | Playback Singer |
| Swarnalatha | Playback Singer |
| Hariharan | Playback Singer |
| Mahalakshmi Iyer | Playback Singer |
| Kavita Krishnamurthy | Playback Singer |
| Palghat Sriram | Playback Singer |
| Sowmya Raoh | Playback Singer |
| Anuradha Sriram | Playback Singer |
| K. S. Chithra | Playback Singer |
| Sirivennela Seetharama Sastry | Lyricist |
| Sapna Awasthi | Playback Singer |
| Dominique Cerejo | Playback Singer |
| Sukhwinder Singh | Playback Singer |
| S. Janaki | Playback Singer |
| Annupamaa | Playback Singer |
| Lata Mangeshkar | Playback Singer |
| M. G. Sreekumar | Playback Singer |
| Udit Narayan | Playback Singer |
| Sujatha Mohan | Playback Singer |
| Mano | Playback Singer |
| Srinivas | Playback Singer |
| Kavita Paudwal | Playback Singer |
| Malgudi Subha | Playback Singer |
| Tigmanshu Dhulia | Screenplay |
| Gulzar | Lyricist |
| Vairamuthu | Lyricist |
| Sivakumar Ananth | Assistant Director |
| Sujatha Rangarajan | Writer |
