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
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)