[2] Krishnamoorthy moved from his home town Tiruvannamalai to Madras (now Chennai) in 1983, hoping to become an actor in films.

[3][4] Krishnamoorthy made a breakthrough as a comedy actor through his role in Thavasi (2001), where he notably appeared in a scene where his character asks Vadivelu's character for directions to Osama bin Laden's and George W. Bush's residences in order to forge a peace treaty between both of them.

[5][6][7] He subsequently worked on several films in the 2000s as a comedian, often appearing in scenes alongside Vadivelu.

[8][1] He later won critical acclaim for his portrayal of Murugan, a middle manager in a human trafficking group in Bala's Naan Kadavul (2009) and as a corrupt police constable in Mouna Guru (2011).

[9] He died in the early morning of 7 October 2019 of a heart attack in Kumily in Kerala, where he was shooting for the film Pei Mama directed by Sakthi Chidambaram.