He is that.

Agreed. I found Madelena's singing voice to be the weakest of the whole cast, and a bit grating. I can listen to anyone's but hers.

Diana is the best character on the show…and I suspect she knows Liza's secret (and knew it when she hired her), but is playing along for Liza's sake. She knew an older woman needed a break and she gave it to her because "screw these young idiots if they can't spot 15 years of wisdom, expertise, and sense on a woman's…