Though Karan Johar considers Shahrukh Khan to be his brother that he never had, he would never consider SRK for a role that doesn't suit the character.
Karan Johar is a thorough professional! No matter what his personal proximity is with a star, he makes sure that it doesn't interfere with his professional life.
Speaking to a leading tabloid, Karan Johar said that Shahrukh Khan knows him too well and does not expect him to consider him for a role that does not suit the character written.
Karan Johar further added that it is always the role that decides the actor and not the other way around. Well, that's what professionalism is all about! What say guys?