
Arulnithi
Arulnithi is an Indian actor, best known for Tamil cinema. Arulnithi began their career in 2010 and has been a prominent figure in the industry for over 16 years. With 30 credits to their name and an average audience rating of 6.6, Arulnithi remains one of the most prolific and celebrated talents in the industry. Spanning 10+ years, Arulnithi's career remains one of the longest and most celebrated in Tamil cinema.
- Born
Biography
Arulnithi Tamilarasu is an Indian Tamil actor, who is best known for playing the lead role in Vamsam, directed by Pandiraj.
Personal Info
Career Milestones
Film debut
View film →Highest rated: Rambo (10.0)
View film →Iconic Roles
Mouna Guru
A college student who gets entangled in a murder mystery and must use his wits to survive.
Defining Moments
Debut Film
Made his acting debut in the lead role of 'Vamsam', directed by Pandiraj.
Critical Acclaim
Received critical acclaim for his performance in the thriller 'Mouna Guru', establishing him as a serious actor.
Filmography
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Career Analytics
Genre Breakdown
Language Distribution
Films by Decade
Top Co-Actors
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Did You Know?
Arulnithi is the younger brother of former Tamil Nadu Chief Minister M. K. Stalin.
He made his acting debut in the 2010 film 'Vamsam', directed by Pandiraj.
He is known for choosing scripts with strong content, often in the thriller genre.
He is a graduate in Visual Communication from Loyola College, Chennai.
He is married to Aishwarya Arulnithi, and they have a daughter.
Photos
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News & Stories

First Song 'Naraga Melangal' from Demonte Colony 2 is Out
5/1/2024

Release date for Kazhuvethi Moorkan has been announced!
12/5/2023
Legacy & Influence
Arulnithi, born Arulnithi Tamilarasu, has carved a distinctive niche in Tamil cinema by consistently choosing unconventional scripts and championing the neo-noir thriller genre. Emerging from the shadow of his prominent political family, he deliberately forged his own path, debuting with a supporting role in 'Vamsam' (2011) but quickly pivoting to establish himself as a leading man in offbeat, content-driven cinema. His career-defining turn came in the same year with 'Mouna Guru' (2011), a critically acclaimed thriller where his understated performance as an innocent man caught in a judicial nightmare showcased his ability to anchor complex narratives. This film set the template for his future choices, marking him as an actor unafraid of morally ambiguous characters and gritty storytelling. Arulnithi's primary contribution lies in his role as a curator of high-concept thrillers and investigative dramas, often produced on modest budgets but with strong screenplays. He has systematically built a filmography that prioritizes narrative innovation over commercial formula, regularly collaborating with new directors and backing scripts that major stars might avoid. Films like 'Demonte Colony' (2015), 'Iraivi' (2016), and more recently 'Kazhuvethi Moorkkan' (2023) and 'Diary' (2022) demonstrate his commitment to diverse genres within the thriller space, from horror to social drama to police procedural. His production house, Thirukumaran Entertainment, further extends this influence, enabling him to produce and act in projects that align with his vision. While not a mass-market superstar, Arulnithi has cultivated a dedicated audience that trusts his selection for quality and suspense. His legacy is that of a savvy, discerning actor-producer who proved there is a sustainable market for intelligent, tightly-woven thrillers in Tamil cinema, inspiring a wave of similar mid-budget, content-focused films and providing a platform for fresh directorial talent.