@Sorano916, I feel like most of the people you named aren't really Broadway royalty. They're more like Broadway nobility. They're Dukes, Duchesses, Lords, Ladies, Knights, Earls, Counts, Countesses, etc. But certainly not royals.
"Broadway Royalty" should be a title reserved for the most revered, and most accomplished. I love Norm Lewis as much as the next guy, but he's nowhere near the level of, say, Julie Andrews or Carol Channing.