Bollywood famous filmmaker Karan Johar acted in `Bombay Velvet` directed by Anurag Kashyap. K Jo says he will never cast Anurag in his film and that he takes only good-looking actors in his films. Johar also said he would never direct himself. The actor-director admits that he couldn`t be his own liability. K Jo says he has no delusion that he cannot do lead roles, but good supporting roles only. This is to recall that Karan Johar will be seen in a negative role in `Bombay Velvet`. He admits that he said yes to this film because no one else would ever offer him a negative role.