Watchman Movie Teaser G.V. Prakash Kumar Suman, Vijay, Nirav Shah watchman is a Tamil thriller film written and directed by Vijay. The film stars G.V. Prakash Kumar in lead role as well as the music composer for this film, reuniting with Vijay since their last film, Idhu Enna Maayam (2015). The film also stars Yogi Babu, Samyuktha Hegde and Raj Arjun in supporting roles.