that shot of cavil, i think should not have been released. it's pretty clear they just slapped a wig on him with no makeup. i'm expecting that while they are actually filming, he'll look much closer to the part.
Not even sure the hair would need to be quite as long. Some things can be tweaked in translation to live action to capture the idea without mimicking every detail, no?
Like the Anson Mount thing floating about. He"d look pretty good already without any make up to start with.