Rajaraman Venkatraman (Vasool Raja)

Kamal Haasan

Janaki Vishwanathan (Paapu)

Sneha

Dr. Vishwanathan

Prakash Raj

Sriman Venkatraman, Raja's father

Nagesh

Vaddi

Prabhu

Amit

Karunas

Vishwanathan

Prakashraj

Zakir

Jayasurya

Kasturi

Rohini Hattangadi

Professor Margabandhu

Crazy Mohan

Priya

Malavika

Neelakandan

Nithin Sathya

Medicine Professor

Ajay Rathnam

Surgery Professor

Kavithalaya Krishnan

Dr. Kalidas

Chitra Lakshmanan

Doctor

Thalaivasal Vijay

Gangadharan

Santhana Bharathi

Margabandhu's father

Kaaka Radhakrishnan

Hospital cleaner

A. K. Veerasamy

Mani Raja

Madhan Bob

Piles Patient

Vaiyapuri

Ward Boy

E. Ramadoss

Raja's sidekick

Karate Raja

Raja's sidekick

Sampath Ram

Mani Raja's wife

Meera Krishnan

Nurse

Kaajal Pasupathi

Professor

Boys Rajan

Anand

Yatin Karyekar

Pickpocket

Tiruppachi Benjamin

Pickpocket

Benjamin

Scissor Manogar

Dancer in the song "Cheena Thaana

Ragasiya