A hero's presence can only shine when he is faced by an equally powerful nemesis, the antagonist. No matter how well-written the character is, the impact can only be translated on screen if the role is portrayed by an actor with a terrific screen presence. The following is the list of thriving lead actors who have also played negative roles in other films.
Probably one of the earliest films that featured two stars of such higher magnitude and screen presence, Koondukkili was made when the actors were still in the early stages of their career.