The narrator of the story, is a good friend to Mary Poppins. An everyman, Bert is a chimney sweep and a sidewalk artist, among many other occupations. With a twinkle in his eye and a skip in his step, Bert watches over the children and the goings-on around Cherry Tree Lane. He is a song-and-dance man with oodles of charm who is wise beyond his years. Cast your strongest male singer, dancer, and actor in this role.