1999-2018 Sasikumar began working in films through his uncle A Kandasamy, who produced
Bala’s
Sethu (1999). The actor worked as an assistant director in the film, where he met director
Ameer, who was also assisting director Bala. He later assisted Ameer in
Mounam Pesiyadhe (2002) and
Raam (2005). Sasikumar's directorial debut
Subramaniapuram (2008), despite being made on a low-budget, opened to high critical acclaim and became one of the highest grossing films of the year. After the success of
Subramaniapuram, Sasikumar produced
Pasanga (2009), directed by debutant
Pandiraj. The action drama film
Naadodigal (2009) was directed by Samuthrakani. He later directed the drama film
Easan (2010). He also acted and produced
Poraali (2011) followed by the
Malayalam film,
Masters (2012) alongside
Prithviraj. Masters was followed by the drama film,
Sundarapandian (2012). The cast included
Lakshmi Menon and
Vijay Sethupathi. In 2013, he acted in
Kutti Puli, with his previous movie pair Lakshmi Menon. The film released to positive reviews. He produced
Thalaimuraigal directed by
Balu Mahendra who acted alongside Sasikumar for the first time in his career. In 2014, Sasikumar starred in the romantic action film
Bramman. Sasikumar acted in
Bala's
Tharai Thappattai and portrayed Sannasi, a
nadaswaram player who heads a
Karagattam troupe. To look the part, he had to train for a month with folk singers and dancers brought in by Bala, while he also grew long hair for the role. The film's production progressed over two years, while the team were forced to have a three-month break in 2015 after Sasikumar had dislocated his hand while shooting for the film's climax. The soundtrack was composed by Ilaiyaraaja. The film garnered a lot of expectations as it was promoted as being the 1000th film score of
Ilaiyaraaja. The soundtrack consisted of seven tracks: five songs and two theme scores. The film was released on 14 January 2016 to mostly positive reviews.
Vetrivel,
Appa,
Kidaari and
Balle Vellaiyathevaa follow up. In 2017, he acted in
Kodiveeran. This was Sasikumar and M.Muthiah's second collaboration after
Kutti Puli. Kodiveeran was produced by M. Sasikumar's Company Productions. In 2018, Sasikumar starred in
Asuravadham. The film received mixed reviews from critics and audience.
2019-present Sasikumar started the year with
Rajinikanth's'
Petta (2019) directed by
Karthik Subbaraj. The next project was
Suseenthiran's
Kennedy Club. In their review, Sify wrote that "Sasikumar is not at all convincing as a
Kabbadi player and maintains the same age-old". The film was an average sports drama. Sasikumar was roped in to star in
Gautham Vasudev Menon's
Enai Noki Paayum Thota (2019), which stars
Dhanush and
Megha Akash . In the film, Sasikumar acted as Dhanush's elder brother. After
Naadodigal 2 (2020), he starred in family films like
Udanpirappe (2021),
MGR Magan (2021) and
Raajavamsam (2021). The subsequent year, he was seen in three action films,
Kombu Vatcha Singamda (2022),
Naan Mirugamaai Maara (2022) and
Kaari (2022). In 2023, Sasikumar was praised for his performance in the drama film
Ayothi. In 2024,
Garudan and
Nandhan were released to positive reviews. Sasikumar starred in
Tourist Family (2025), a comedy-drama directed by debutant Abishan Jeevinth which became his highest-grossing release. == Filmography ==