Speech, not skin or gender, matters most when recasting characters

On Twitter, talking about the new star of Dr. Who, John Bullock said, Oh hang on. I'll accept a lady doc, black doc, gay doc, trans doc... but make the doc not British and I'm out. Some lines you don't cross! Someone asked why, and I replied, Because what ultimately characterizes people is speech, not skin. Batman must talk like a rich New Yorker, and the doctor, like a Brit. This is why it