A professional RJ, Mihir Pathak is also a Gujarati film and theatre actor. He made his acting debut in 2017 with director Saandeep Patel's romantic drama Love Ni Bhavai. The movie was a critically and commercially successful and had Mihir in a guest appearance. In 2018 Mihir acted alongside Zalakkumar Patel, Aishwarya Naik, Nihal Patel, Simran Arora, Henish Jariwala, and Toral Sharma in debutant filmmaker Chandradhar Rao Putta's Gujarati mystery-thriller, "Joothanu?". He plays a character named Sandy Sr. in the movie. He is married to Juhi Pathak.