Kollywood actor Madhavan will don a cop role in the flick Vettai. The ace actor will share the screen space with kollywood actor Madhavan in the flick. The name of his character is Thirumoorthy. "A man with principles, he wants to serve the department and the society with utmost sincerity. But what happens when hurdles come in his way is the crux of the story,", said close sources. Sameera Reddy would play the wife of Madhavan in the flick and Amala Paul will don the role of his sister in law.