Character Name : "Gunaa" Gunasekharan

Original Name : Kamal Haasan

Gender : Male

Character Name : Rohini

Original Name : Roshini

Gender : Male

Character Name : Rosy

Original Name : Rekha

Gender : Female

Character Name : Gunaa's uncle

Original Name : Janagaraj

Gender : Male

Character Name : CBI officer Ramaiah

Original Name : S. P. Balasubramaniam

Gender : Male

Character Name : Doctor Ganesh

Original Name : Girish Karnad

Gender : Male

Character Name : Suresh Kumar

Original Name : Sharat Saxena

Gender : Male

Character Name : Ismail

Original Name : Pradeep Shakti

Gender : Male

Character Name : Gunaa's cellmate

Original Name : Ananthu

Gender : Male

Character Name : Doctor

Original Name : Sethu Vinayagam

Gender : Male

Character Name : Inspector Moovendar

Original Name : Ajay Rathnam

Gender : Male

Character Name : Manonmani

Original Name : S. Varalakshmi

Gender : Female

Character Name :

Original Name : Kaaka Radhakrishnan

Gender : Male