Hrithik Roshan will reportedly be playing both hero and villain in the sequel to Krrish. The story and script are ready and there was speculation that a top hero would play the negative role in krrish 2. However, Rakesh Roshan is said to have hit upon the idea that it would be novel if HrithiK plays both the protagonist and the negative role. He already essayed a negative role in Dhoom 2.
An official announcement is expected soon after Hrithik returns from the shooting of Zindagi Na Milegi Dobara.