Gavin Lee, who originated the role of Bert in the hit Broadway and London productions of 'Mary Poppins', and Ashley Brown, who originated the title role on Broadway, both play their final performances today, Sunday October 5th. They will then ready to essay the leading roles on the show's National Tour. 'The Mary Poppins' North American Tour begins performances in Chicago at The Cadillac Palace Theatre on March 11, 2009. After Chicago, the tour is scheduled to play The State Theatre in Cleveland, The Fox Theatre in St. Louis, and The Ahmanson Theatre in Los Angeles, Music Hall at Fair Park Dallas Texas.with additional cities, venues and dates to be announced.