JKR is very territorial about the Old World. She mentions wizards from France, Belgium and Eastern Europe, even Africa, but never North or South America. Cho is Asian, as are the Patil sisters. No Jose Gonzalez from Mexico or Jenny MacKenzie from Alberta.
After Chris Columbus cast his daughter and niece in the first two movies, she's forbidden non-British actors.
49 posted on 07/11/2007 7:31:57 AM PDT by CholeraJoe
("Who are you and what have you done with Hermione Granger?")