Kamal Haasan
Gunaa
Acting
Roshini
Rohini
Acting
Rekha
Rosy
Acting
Janagaraj
Gunaa's uncle
Acting
S. P. Balasubramaniam
CBI officer Ramaiah
Sound
Girish Karnad
Doctor Ganesh
Acting
Sharat Saxena
Suresh Kumar
Acting
Pradeep Shakti
Ismail
Acting
Ananthu
Gunaa's cellmate
Writing
Sethu Vinayagam
Doctor
Acting
Ajay Rathnam
Inspector Moovendar
Acting
S. Varalakshmi
Manonmani
Acting
Kaaka Radhakrishnan
Madasami
Acting
Saritha
Rohini (voice)
Acting
R.S. Shivaji
Barber (uncredited)
Acting