Vivek is a busy man these days. He is starring in ‘very important roles’ in four upcoming movies. In Ajith 55, the comedian plays a sidekick to Ajith’s cop character; in Vai Raja Vai, he is a software professional with a gambling addiction and in Velaiyilla Pattathari, he plays mentor to actor Dhanush. The award-winning comedian is also awaiting the release of Naan Thaan Bala, in which he essays his first ‘serious’ role –  as that of a simple priest who befriends a local thug. The movie will hit theatres on June 13.