He has mostly played the role a "comedy/comic villain" in Tamil films. John Vijay did his M.Sc in Visual Communication from Loyola College. Vijay also works as the head programme director of Radio One FM. John is the chief of "H2O", an advertising agency with its office at Nungambakkam.
Pushkar and Gayatri, who were his juniors in the Visual Communications course in Loyola College, offered him a role in their directorial debut Oram Po.
His performance as “Sun of Gun” in the film was described by critics as "scene stealer, his antics bring the house down".