Naan Sigappu Manithan

Rajinikanth Professor Vijay / Robinhood

K. Bhagyaraj CID Chinna Salem Singaram

Ambika Uma

Sathyaraj Mohanraj

Sumathi Vijay's Sister

Nizhalgal Ravi Ravi

Y. G. Mahendran Police Inspector

Venniradai Moorthy

M. N. Nambiar Senior Police Officer

Thengai Srinivasan Minister Tambaram Thanga Kannan

S. A. Chandrasekhar Mental Hospital Ward Boy

Senthil Senthil

V. Gopalakrishnan

V. S. Raghavan Judge

Veera Raghavan Justice Veeraraghavan

Babloo Prithiveeraj

Swaminathan Student

T. K. S. Natarajan

Kovai Sarala

Vijay (uncredited)