During his struggling years, Ronit Roy worked as a bartender and a management trainee at the Sea Rock Hotel in Mumbai.
Ronit Roy was brought up in Ahmedabad and later he came to Mumbai, aspiring to become an actor. In Mumbai, he stayed with filmmaker Subhash Ghai, who was his father's close friend.
Subhash Ghai, who is a close of Ronit Roy's father, advised him to not pursue a career in the film industry owing to the difficulties associated with it.
Before becoming an actor, Ronit Roy worked as an assistant to directors Sanjeev Sharma and Mansoor Khan.
In his early days in the industry, while working with Mukta Arts, Ronit Roy happened to help Madhuri Dixit with a scene narration. However, director Subhash Ghai scolded Ronit telling him to finish his job on time and then helping others.
Irrfan Khan was offered the role of Ahmed Sinar in the movie Midnight's Children (2012), however, he was later replaced by Ronit Roy.
Roy is the owner of Ace Security and Protection Agency, which provides security solutions to celebrities and production houses. Among the clientele are Shah Rukh Khan, Aamir Khan, Amitabh Bachchan and Salman Khan, and former IPL chairman Lalit Modi. The agency has also provided security solutions to high-profile movies like Lagaan and Dil Chahta Hai.