Sivakarthikeyan (born 17 February 1985) is an Indian actor, playback singer, producer, lyricist and television presenter who works in Tamil films. He began his career in television as a reality show personality on Star Vijay. He made his acting debut in Marina. He produces films under his production company, Sivakarthikeyan Productions.
During college, he took part in various cultural events and performed mimicry and stand-up comedy on stage. Between his studies he took three months break and during this period his friends convinced him to go for auditions of Kalakka Povathu Yaaru, a reality show for comedy aired on Star Vijay. He started his career as a mimicry artist. Despite initial reluctance to participate, he won the show. He appeared in short films including his friend Atlee's Mugapputhagam, Identity, Kurahl 786 and 360°. The makers of Aegan noticed Sivakarthikeyan and offered hilm a supporting role, but his portions didn't make the final cut.