RJ Balaji is an Indian actor, radio jockey, television presenter, comedian, and film director in Chennai, Tamil Nadu. He is best known as the host of the 92.7 Big FM shows The Night Show with RJ Balaji, Take it Easy, and its now defunct segment Cross Talk, where he made prank calls to unsuspecting victims. Although mainly a radio jockey, Balaji is also active in other fields; he is known for his association with the television shows Ungalil Yaar Adutha Prabhu Dheva and Why This Kolaveri, and for his performance in the films Theeya Velai Seiyyanum Kumaru (2013), Vadacurry (2014) Naanum Rowdy Dhaan (2015), Pugazh (2016) and LKG (2019) (as an actor), Mookuthi Amman (2020) and Veetla Vishesham (2022) (as an actor and a co-director). He has also been a presenter at many inter-school cultural events in Chennai, a cricket commentator, and has contributed to many social causes, such as providing relief support to the victims of the 2015 South Indian floods along with other actors.