Santhanam averages 6.31 across 46 rated films as an actor, ahead of Sundar C. at 5.34.
Dot size shows IMDb votes. Films with fewer than 1,000 votes sit on the baseline.
| Rendu | 2006 | · | Director, Writer | Actor |
| Kalakalappu | 2012 | 7.1 | Director | as Vettupuli |
| Theeya Velai Seiyyanum Kumaru | 2013 | 6.2 | Director, Writer | as Mokia |
| Aranmanai | 2014 | 5.4 | as Ravi, Director, Writer | as Paalsamy |
| Aambala | 2015 | 4.9 | Writer, Director, Producer | as Rajasekhar |
 Madha Gaja Raja | 2025 | 5.6 | Writer, Director | as Kalyanasundaram |
