Main Cast:
* Mammootty as CBI Officer Sethurama Iyer
* Shankar as Sathyadas
* Kaviyoor Ponnamma as Sathyadas' mother
* Thilakan as Sathyadas' uncle
* Nedumudi Venu as Advocate Narayanan
* Jagathy Sreekumar as Doctor
* Innocent as Inspector Velayudhan
Supporting Cast:
* K. P. A. C. Lalitha as Sathyadas' sister
* Sukumari as Sathyadas' aunt
* M. G. Soman as Sathyadas' friend
* Sreenivasan as Sathyadas' friend
* Bharath Gopi as Sathyadas' friend
* Captain Raju as Inspector
* Janardanan as Hotel Manager
* Rajan P. Dev as Inspector
* Lalu Alex as Inspector
* Kollam Thulasi as A servant
* Sudheer as A servant
* Ponnamma Babu as A servant
This is not an exhaustive list, but includes the main cast and some of the supporting roles.