Is it a bird? Is it a human? Oh wait, it's Akshay Kumar. These were the sort of reactions Akshay received after the first look of his role in Robot 2.0 went viral.

As Akshay revealed during the press conference of Robot 2.0, "In my 25 years of career I have never put make up, but in this film 'poore 25 years ka kasar pura hogaya'. It used to take me three hours to put the make up on and one hour to remove it (for the role of villain). While they used to put make up on me, I use to watch so many movies on TV."

Of course, his transformation is amazing but there are others who have gone through the same. We take a look at all the other actors who had prosthetics help them mould their appearance for a film:

1. Amitabh Bachchan - Paa

2. Rishi Kapoor - Kapoor & Sons 

3. Shah Rukh Khan - Fan

4. Kamal Haasan - Chachi 420, Hindustan and Dasavatharam