Cleopatra was Macedonian Greek. Semites are born brown, not dark from the sun. Is an Arab light skinned? The people of the Bible would visually and genetically be more similar to an Arab than to a European.
Not that I really think it matters much for a tv show, other than the obvious double standard! Which I find amusing!
I have no idea why you are so obsessed with different shades of skin color. I have seen many Semitic people who were as white as your typical Scotsman.
They do have certain characteristics but dark color is not one of them. Not to say that some are darker than others just as some are lighter than others.