Based on the life of G.D. Naidu, the 'Edison of India', dramatising his groundbreaking innovations, his industrial contributions, and conflicts with authorities—including struggles where his work and international dealings faced severe scrutiny and opposition.
| Actor | Role |
|---|---|
 R. MadhavanGD Naidu | GD Naidu |
 PriyamaniChellammal | Chellammal |
 SathyarajRamaiah Pillai | Ramaiah Pillai |
 JayaramAmbalapara Krishnan | Ambalapara Krishnan |
 Dushara VijayanRanganayaki | Ranganayaki |
 Abdool LeeChidambaram | Chidambaram |
 Thambi RamaiahRamasamy Mama | Ramasamy Mama |
 Vinay RaiBhupendra | Bhupendra |
 Ramesh ThilakNot listed | Not listed |
 KarunakaranPerunkili | Perunkili |
 Aditi BalanPadmavathi | Padmavathi |
 John VijayNot listed | Not listed |
 Yogi BabuNot listed | Not listed |
| MMuralidaranMurali | Murali |
| NNandalalNot listed | Not listed |
 TeejayYoung G.D.N | Young G.D.N |
 Mohan RamanNot listed | Not listed |
| RRichard Bhakti KleinRobert Stanes | Robert Stanes |
| CCarl Andrew HarteHenry Adams | Henry Adams |
 KanihaNot listed | Not listed |
 Sheela RajkumarYoung Chellamal | Young Chellamal |
 NandhuAchudhan | Achudhan |
 Jenson DhivakarVellaiyan | Vellaiyan |
 Brigida SagaDeivanai | Deivanai |
 Vijay YesudasPeriyar | Periyar |
 ShafnaNot listed | Not listed |