Kutram Thavir is about Rudra, whose elder sister dies due to a fraudulent medical insurance scheme, leading him to discover a conspiracy that exploits the poor. Driven by grief and anger, Rudra seeks revenge and exposes the truth behind his sister's death.
| Actor | Role |
|---|---|
 Rishi RithvikRudra | Rudra |
 AradhyaIndhumathi | Indhumathi |
 Sai SaindhiviPooja | Pooja |
 SaravananManivasagam | Manivasagam |
 Boxer DheenaManivanan | Manivanan |
 George Vijay NelsonKumar | Kumar |
| MM.KamarajRobert | Robert |
 Vinodhini VaidyanathanKasturi | Kasturi |
 SentrayanNot listed | Not listed |