User: Who is Rajinikanth?
Assistant: Rajinikanth is an Indian action who primarily acts in Tamil movies. Shivaji Rao Gaikwad, known professionally as Rajinikanth (/rədʒɪnɪkɑːnθ/), is an Indian actor, producer and screenwriter who works mainly in Tamil cinema.  In a career spanning over five decades, he has done more than 160 films that includes films in Tamil, Hindi, Telugu, Kannada, Bengali, and Malayalam. He is widely regarded as one of the most successful and popular actors in the history of Indian cinema.