In a makeup test, they had Ian McDiarmid looking just like the Emperor we know from the Classics, complete with yellow eyes and terrible crevaces of deep facial features. In one shot he's kind of gritting his teeth looking right at the camera. There are dark rings of red and brown under and around his eyes, and his lips are pursed and cracked. His face doesn't just look weathered, it looks plain evil. His black cloak is over his head in this first test shot.