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Dhanush as Kathavaraayan 'Raayan' |
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Dushara Vijayan as Durga |
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Sundeep Kishan as Muthuvelraayan 'Muthu' |
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Kalidas Jayaram as Manickavelraayan 'Manickam' |
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S. J. Suryah as Sethuraman 'Sethu' |
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Selvaraghavan as Sekhar |
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Aparna Balamurali as Mekhala |
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Prakash Raj as R. Sargunam |
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Saravanan as Durai |
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Varalaxmi Sarathkumar as Sethu's first wife |
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Ilavarasu as Meghalai's Father |
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Divya Pillai as Annam Sethuraman |
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Devadarshini as Doctor |
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Aranthangi Nisha as Police officer |
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Karthick Anjaneyan as Anjaneyan |
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Dhileban as Guru |
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Namo Narayanan as Jagannathan |
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Cell Murugan as Bartender |
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Shah Ra as Kothandam |
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Geetha Kailasam as Durai's wife |
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Anbu Mayilsamy as Sethu's Henchman |
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Kichcha Ravi as Kathavaraayan's Father |
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M. Soundarya Saravanan as Kathavaraayan's mother |
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Rahul R. as Young Kathavaraayan |
| Crew | Prabhu Deva | Choreographer |
| Crew | Peter Hein | Stunt Coordinator |
| Camera | Om Prakash | Director of Photography |
| Editing | Prasanna GK | Editor |
| Costume & Make-Up | B. Raja | Makeup Artist |
| Production | Kabilan Chellaiah | Publicist |
| Art | Jacki | Production Design |
| Costume & Make-Up | Kavya Sriram | Costume Designer |
| Writing | Dhanush | Writer |
| Sound | A.R. Rahman | Original Music Composer |
| Production | Kalanithi Maran | Producer |
| Directing | Dhanush | Director |
| Writing | Arivu | Lyricist |
| Sound | Dhanush | Playback Singer |
| Writing | Dinesh Kanagaratnam | Lyricist |
| Writing | Dhanush | Lyricist |
| Writing | Gaana Kadhar | Lyricist |
| Sound | Santhosh Narayanan | Playback Singer |
| Sound | Shweta Mohan | Playback Singer |
| Sound | Dinesh Kanagaratnam | Playback Singer |
| Sound | Arivu | Playback Singer |
| Sound | A.R. Rahman | Playback Singer |
| Directing | Venkatesh Menon | Assistant Director |
| Visual Effects | Praveen D | VFX Supervisor |
