Ajith Kumar (Tamil: அஜித் குமார்; Sindhi: अजित कुमार; born 1 May 1971) is an Indian film actor who works mainly in Tamil cinema. He began his career as a supporting actor in a Telugu film before gaining critical recognition in the Tamil thriller Aasai (1995). A succession of high-grossing films followed where Ajith was usually depicted as a romantic hero, with Kadhal Kottai (1996) and Kadhal Mannan (1998) being the most notable. He later forayed into method acting, as seen in Vaali (1999), Mugavaree (2000), Kandukondain Kandukondain (2000) and Citizen (2001) before establishing himself as an action hero with popular films including Amarkalam (1999), Dheena (2001), Villain (2002), Varalaru (2006) and Billa (2007).
He has won three Filmfare Best Actor Awards in Tamil, all for films which showcased him in multiple roles. Ajith performs predominantly in leading roles in major studio films, genres ranging from romantic comedies and drama to action thrillers. In addition to his acting, Ajith, in a sabbatical, participated in the 2004 British Formula Three season as a race driver for a minor outfit, and was ranked the third best motor car driver in India at his peak. Ajith remains a popular figure in the media of Tamil Nadu, making headlines for his relationships before his marriage to former actress Shalini, his long-running media-built rivalry with fellow actor Vijay and his controversial statements in a few occasions.