Kathir is an Indian actor who predominantly works in Tamil language films. He made his breakthrough by playing the lead role in Madha Yaanai Koottam (2013). He gained critical acclaim by breaking stereotypes in Kirumi (2015), Vikram Vedha (2017), Pariyerum Perumal (2018) and Sigai (2019). He is one of the few actors who manages to strike balance between commercial success and experimentation.