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Suriya as Krishna / Palpandi |
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Jyothika as Janaki / Kalyani |
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Nassar as C. R. Kannan |
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Vijayakumar as K. R. Bharathi |
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Ambika as Nirmala Bharathi |
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Karan as Venu Mahadevan |
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Delhi Ganesh as Ramanathan |
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Vadivelu as Shanmugam |
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கோவை சரளா as Dr. Bala Thirupurasundari |
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Madhan Bob as Rathavelu |
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Dhamu as Dhamu |
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Maadhu Balaji as Doctor's Assistant |
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Kaaka Radhakrishnan as Rangasamy |
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Bhavatharini as Herself (Special Appearance) |
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மனோரமா as Herself (Special Appearance) |
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R. Parthiban as Himself (Special Appearance) |
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Ramki as Himself (Special Appearance) |
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Raju Sundaram as Special Appearance in "CBI Enge" & "Oh Senyoreeta" Songs |
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Kavitha as Lakshmi |
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Pasi Sathya as Kalyani |
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Agathiyan as Himself (Special Appearance) |
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Pyramid Natarajan as Himself (Special Appearance) |
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கணேஷ் as Himself (Special Appearance) |
| Directing | Vasanth | Director |
| Editing | R. Sridhar | Editor |
| Production | Meena Panchu Arunachalam | Producer |
| Camera | M. S. Prabhu | Director of Photography |
| Sound | Yuvan Shankar Raja | Original Music Composer |
| Writing | Vasanth | Screenplay |
| Writing | Crazy Mohan | Dialogue |
| Writing | Vasanth | Story |
| Production | Subbu Panchu | Producer |
| Sound | Sujatha Mohan | Playback Singer |
| Sound | Bhavatharini | Playback Singer |
| Sound | Srinivas | Playback Singer |
| Sound | Sadhana Sargam | Playback Singer |
| Sound | Nithyasree Mahadevan | Playback Singer |
| Sound | Hariharan | Playback Singer |
| Sound | P. Unnikrishnan | Playback Singer |
| Sound | Sukhwinder Singh | Playback Singer |
| Production | Panchu Arunachalam | Producer |
