Djimon Hounsou as Joseph Asagai

I would cast the actor Djimon Hounsou for the character Joseph Asagai. I would use a younger version of Djimon Hounsou, when he was around in his late teens early twenties.  Djimon Hounsou is the perfect actor for this role, as he visually looks like how this character is portrayed in the play.  He is black and looks like someone from Nigeria, he's actually from Benin, Africa, which is to the west of Nigeria.  He has a bold, strong look, his dark black skin 'looks' Nigerian.