* Vani Viswanath as Vani
* Vijayakanth as Viswanath
* Radha as Janaki
* Prabhu as Prabhakar
* Sathyaraj as Sathyamurthy
* Manorama as Vani's mother
* S.Ve.Shekher as Viswanath's father
* Janagaraj as Janaki's father
* S. N. Lakshmi as Janaki's mother
* Charle as Prabhakar's friend
* Senthil as Sathyamurthy's friend
Supporting cast
* K. K. Soundar as Vani's uncle
* Y. G. Mahendra as Vani's cousin
* Jayamalini as Vani's cousin
* V. K. Ramasamy as Vani's grandfather
* Sukumari as Vani's grandmother
* S. S. Chandran as Viswanath's colleague
* Vasanthi as Viswanath's colleague
* Vinu Chakravarthy as Prabhakar's colleague
* Prameela as Prabhakar's colleague
* Senthamarai as Sathyamurthy's colleague
* Anuradha as Sathyamurthy's colleague
Guest appearances
* Gemini Ganesan as Vani's father
* Sridevi as Vani's mother (young)
* Kamal Haasan as Viswanath's friend
* Rajinikanth as Prabhakar's friend
* Amitabh Bachchan as Sathyamurthy's friend