If SRK fans thought that he is Ra.One in the movie, they are wrong. In this multi-crore extravaganza, it is Arjun Rampal who will essay the role of Ra.One, a bad robot. Shah Rukh Khan, according to a source, will be seen in a double role in the film. One of his characters is that of a scientist who creates two robots, the good robot called G.One and the bad one known as Ra.One that is essayed by Arjun Rampal. The last time when a negative character was elevated to ‘title status’ was Pradeep Rawat in Ghajini.