Sathi Leelavathi

Arun, a married man, has an affair with Priya as he dislikes his wife Leelavathi, who is plain-looking and overweight. When she discovers Arun's affair, she plots with Dr. Sakthivel to win Arun back.

Ramesh Aravind

Arunachalam

Heera Rajgopal

Priya

Kalpana

Leelavathi

Kamal Haasan

Shaktivel

Kovai Sarala

Palaniammal Sakthivel Gounder

Chokkalinga Bhagavathar

Arunachalam's father

Raja

Raja

Ra. Sankaran

Leelavathi's father

Dubbing Janaki

Leelavathi's mother

Janaki

Leelavathi's mother

Pasi Sathya

Madhan Bob

Leelavathi's brother

Kavithalaya Krishnan

Hotel staff

Vatsala Rajagopal

Ambujam maami

Anand Krishnamoorthi

Sakthivel's son

Monica

Ammulu, Arunachalam's daughter