CallMeAl2 said: "I think it would work fine until Eliza gets to Ascot and the Embassy Ball. The whole point of those scenes is that she is able to "pass" as upper class with some degrees of success. A woman of color would never pass, regardless of her diction.
Higgins whole point is that only language and graceful behavior separates class, but that is only true as long as we are talking about white people. Once race enters the picture, forget language. The entire premise crumbles.
It's hard to do a play where class matters and ask the audience to ignore the character's race."
In the current production, Freddie and his mother (both seen in the Ascot scene) are played by black actors. Karpathy, the Hungarian, is played by an Indian actor.