Karthik Sivakumar, credited as Karthi, is an Indian actor who works in Tamil Cinema. He is son of veteran actor Sivakumar who began his career as an assistant director in his elder brother Suriya's film Aayutha Ezhuthu (2004). Latter debuted with Paruthiveeran (2007) and recorded a golden debut in Tamil Cinema with six consecutive success. Karthi is an recipient of three Filmfare Awards South and a Tamil Nadu State Film Award.