In a Mirror Darkly

What's the opposite of an A-List Celebrity? Not a Z-List Celebrity but rather a Z-List Nonentity. Following that train of thought to it's logical conclusion: an A-List Celebrity is equivalent to a Z-List Nonentity and a Z-List Celebrity is equivalent to an A-List Nonentity. By the same token, a B-List Celebrity is equivalent to a Y-List Nonentity and a Y-List Celebrity is equivalent to a B-List Nonentity. And so on from A to Z and reflectivity from Z to A.