play MacBeth and Eric Owens
play Banquo (I understand he was also a terrific Alberich in Das Rheingold and a smash hit in the title role of Grendel at the Met), and I've seen Denyce Graves
and Patricia Racette
playing sisters in Cosi fan tutte. And when did you ever see an actual Japanese woman play Madama Butterfly?
Honestly, in theater (musical or otherwise) you're just telling a story; unless it is somehow integral to that story, who cares what color the characters are?
