Thanga Surangam

Bharathi

Amutha a daughter of Subbaiya

Shivaji Ganesan

R.S. Manohar

Velayutham of the Spai Gang

T.S. Muthaiah

Subbaiya, a chemist

Nagesh

Mani who is a friend C. B. I Officer Rajan

Vennira Aadai Nirmala

Malliga of the Spai Gang

Varalakshmi S.

Kamakshi the mother of Rajan

Jawar N. Sitaraman

Father Arockiyasamy, a priest who was Rajan's legal guardian

Major Sundarrajan

Head of Regional C. B. I. Office

O.A.K. Devar