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.