Arulnithi Tamilarasu is an Indian Tamil actor, who is best known for playing the lead role in Vamsam, directed by Pandiraj. His second film was Udhayan in which he played a dual role for the first time. His third film Mouna Guru directed by debutant Santhakumar was a critically acclaimed sleeper hit which was also screened at the Hong Kong International Film Festival 2013.

• தீமொண்டே கோலோனி (2015)

  
• Iravukku Aayiram Kangal (2018)

  
• Kalathil Santhippom (2021)

  
• திருவின் குரல் (2023)

  
• K-13 (2019)