Karunas (born 21 February 1970 as Karunanidhi Sethu) is an Indian actor, politician and former comedian in the Tamil film industry. Appearing mostly in supporting roles, he has also played lead roles in films including Dindigul Sarathy (2008) and Ambasamudram Ambani (2008). Apart from acting, Karunas has also been credited in films as a producer, music composer and a singer, while he continues to serve as the Vice-President of the Nadigar Sangam, after being elected in October 2015.
Karunas was born in Kuruvikkarambai, a village in Thanjavur, Tamil Nadu, India. He did his schooling at Palangudi Bharathi School and later studied at Nandanam Arts, Presidency College. Karunas began his career as pop singer and dancer, working extensively on Tamil folk music. He then gradually appeared in films as a comedian.
Karunas began work as a gaana singer aged 12, earning the moniker "Gaana" Karunas, and made his television debut through Yuhi Sethu's Naiyaandi Darbar show in the late 1990s as a musician. Director Bala heard one of his songs and subsequently signed Karunas on for an acting role in his second directorial venture, the drama film Nandha (2001). He was cast as the comedian and his role as 'Lodukku' Pandi won him critical acclaim, prompting him to accept further film offers. He subsequently went on to appear in notable films including Baba (2002), Pithamagan (2003), Vasool Raja MBBS (2004) and Polladhavan (2007) in supporting comedy roles. Karunas has also distributed two films, Pori (2007) and Kattradhu Thamizh (2007), but the failure of both films has prompted him to stay away from distributing any further ventures.