In my review of the Goodman Theatre’s revival of the 1928 Marx Brothers musical Animal Crackers, I referred to the fact that the silent Marx brother, Harpo, is played by Molly Brennan. That prompted one reader (Reader film critic J.R. Jones) to comment, “Having a woman play Harpo Marx is like having Bill O’Reilly play Louis Armstrong.” Actually, I would LOVE to see Bill O’Reilly play Louis Armstrong, as long as the sound was dubbed. But the comment raises a point: Intentionally or otherwise, color- and gender-blind casting helped the Goodman and director-adapter Henry Wishcamper avoid the pitfalls of political incorrectness.