Siddharth
Munna
Genelia D'Souza
Harini
Bharath Srinivasan
Babu Kalyanam
S. Thaman
Krishna
Nakul
Juju
Vivek
Mangalam
Senthil
Anna Veriyan
Janaki Sabesh
Munna's mother
Solomon Pappaiah
Judge
Anita Ratnam
Harini's Mother
Subhashini
Babu Kalyanam's Mother
Ilavarasu
Kumar's Father
Chitti Babu
Hari
A. V. Ramanan
Munna's Father
Raviprakash
M. Chandra Shekar
Kalairani
Kumar's Mother
Manikandan
Kumar
Sindhuri
Ankita
Bhuvaneswari
Rani
Manobala
Ajay
Sathyan Sivakumar
Deepu
Ramji
Bhaskar
Delhi Kumar
Judge
A. C. Murali Mohan
Suryakanth
'Pimp' Manickam
Hariharan
Himself
Blaaze
Himself as a Music Award Show Host
S. P. Balasubramaniam
Himself as a Music Award Show Host
Vijay Yesudas
Himself as a Music Award Show Host
K. G. Ranjith
Himself as a Music Award Show Host
Rathi Arumugam
Harini (Voice)
V. Manikandan
Additional Director of Photography
Karthik
Playback Singer
Blaaze
Lyricist
Vaali
Lyricist
Blaaze
Playback Singer
Vasundhara Das
Playback Singer
Kunal Ganjawala
Playback Singer
Pa. Vijay
Lyricist
Chithra Iyer
Playback Singer
S.P.B. Charan
Playback Singer
Kabilan
Lyricist
Clinton Cerejo
Playback Singer
Annupamaa
Playback Singer
Adnan Sami
Playback Singer
Sadhana Sargam
Playback Singer
Chinmayi Sripaada
Playback Singer
Lucky Ali
Playback Singer
Sunitha Sarathy
Playback Singer
K. V. Anand
Additional Director of Photography
Tippu
Playback Singer
Marc Kolbe
Visual Effects Supervisor
V. T. Vijayan
Editor
Shankar
Director
A. M. Rathnam
Producer
Sujatha Rangarajan
Writer
Ravi K. Chandran
Director of Photography
Vikram Dharma
Stunts Coordinator
Hosimin
Assistant Director
Sujatha Rangarajan
Dialogue
Shankar
Screenplay
Sabu Cyril
Art Direction
Shankar
Story
A.R. Rahman
Original Music Composer
V Selvakumar
Assistant Art Director