
Ramanathan Sarathkumar is an Indian film actor, journalist, politician, the former president of the South Indian Film Artistes' Association and former body builder. Sarathkumar has acted in more than 130 Tamil, Malayalam, Telugu and Kannada films. He can speak Tamil, Telugu, Malayalam, Kannada and English fluently.
In 1986, Sarathkumar started his acting career in the Telugu film Samajamlo Sthree. He first acted in negative roles, and later played minor roles before establishing himself as a lead actor in the subsequent years earning him the title Supreme Star in Tamil cinema. He has won two Tamil Nadu State Film Awards and three Filmfare Awards South.
In 2007, he launched a new political party All India Samathuva Makkal Katchi (AISMK) in Tamil Nadu claiming to carry out the ideals of K. Kamaraj. He is the former Member of Legislative Assembly of Tenkasi constituency. He served as the president of the Nadigar Sangam from 2006 to 2015 for three consecutive terms.

Daadi Ki Shaadi
2026 · as Col. Theeran Devrajan

Mr. X
2026 · as Parameshwar Surya Pratap 'Mr. X' / Rana

Genius
2012 · as R. Sarath Chandra

Suryavamsam
1997 · as Sakthivel Gounder / Chinnarasu Gounder

Jaya Janaki Nayaka
2017 · as Chakravarthy

Nilavuku En Mel Ennadi Kobam
2025 · as Narayanamoorthy

Bharat Ane Nenu
2018 · as Bharath's Father

Thangamana Thangachi
1991 · as Vijay

Dasarathan
1993

Suriyan
1992 · as Suriyan

Ellaichami
1992 · as Ellaichami

Nethaji
1996 · as Nethaji

Thalaimagan
2006 · as Dheeran

Coolie
1995 · as Karna

Pahalgam

Band Master
1993

Dude
2025 · as Minister Athiyamaan Azhagappan

Idhaya Vasal
1991