This is a character I'm adding. They don't exist in the JJBA universe.

Part of the "twist" I'll be adding is that this was all a part of a set. The director is the one in charge of having the scene play out. I imagine a stereotypical, flamboyant director who who sounds like he always loves his work. Even when he's insulting you to your face, he does it in such a cheerful way, that you question if he's doing ok. 

I'm always up for interpretations, but feel free to use the information above as a guidline.