Madhavan is known as Military due to his strict attitude towards his five sisters. However, when he is forced to get his first sister married to a widowed professor, his other sisters alienate him.
| Actor | Role |
|---|---|
 Sathyaraj'Military' Madhavan | 'Military' Madhavan |
 RambhaLakshmi | Lakshmi |
 LivingstonBalasubramaniam | Balasubramaniam |
 ManivannanMadhavan's father | Madhavan's father |
 Ramesh KhannaGanesan | Ganesan |
 Nizhalgal RaviProfessor | Professor |
 VijayalakshmiSeetha | Seetha |
 Vinu ChakravarthySundaramoorthy | Sundaramoorthy |
 M. S. BhaskarMuthu | Muthu |
 SenthilAravind Swamy | Aravind Swamy |
 DhamuAzhagesan | Azhagesan |
 MayilsamyNot listed | Not listed |
 VaiyapuriNot listed | Not listed |
 Halwa VasuNot listed | Not listed |
 Lollu Sabha MaaranNot listed | Not listed |
 Santhana BharathiVelu Nayakar | Velu Nayakar |
 PonnambalamNot listed | Not listed |
 Kazan KhanShiva | Shiva |
 AnjuNot listed | Not listed |
 IndhuAmmu | Ammu |
 LavanyaNandhini | Nandhini |
| AArunasriKamili | Kamili |
| KKarpagamNot listed | Not listed |
 SanthoshiNot listed | Not listed |
 S. N. LakshmiAishwarya | Aishwarya |
 K. R. VatsalaNot listed | Not listed |
 Kovai SenthilNot listed | Not listed |
 Vellai SubbaiahNot listed | Not listed |
 Scissor ManogarNot listed | Not listed |
 ChelladuraiNot listed | Not listed |