Sathish Muthukrishnan is an Indian actor and comedian working in the Tamil film industry. He made a breakthrough portraying a role alongside Sivakarthikeyan in Ethir Neechal (2013). He won Edison Award for Best Comedian for his performance in Kaththi (2014), Thangamagan (2015) and Remo (2016) and Edison Award for Best Appearance for the film Tamizh Padam 2 (2018).

Kaththi (transl. Knife) is a 2014 Indian Tamil-language action drama film written and directed by AR Murugadoss and produced by Lyca Productions. The film stars Vijay in a dual role with Samantha, Neil Nitin Mukesh, Tota Roy Chowdhury, and Sathish. It focuses on Kathiresan, a petty thief and lookalike of Jeevanantham, who assumes the identity and attempts to lead a rebellion by farmers from the latter's village, Thanoothu, and helps them fight against an entrepreneur who exploited Thanoothu's water resources.