From Broadway to the Mirvish stage, ‘Mrs. Doubtfire’ is on-stage at the Princess of Wales Theatre in Toronto until January 18. Based on the 1993 Robin Williams film, it follows an out-of-work father as he transforms into a Scottish nanny in order to see his children. Liem Vu chats with Craig Allen Smith about his uncanny transformation on-stage and to co-star Melissa Campbell about the heart behind the hijinks.