Mary Poppins (character) it appeared fully formed in her mind in 1934. Neil Gaiman's short story "The Problem of Susan" mentions a posthumously (for P. L. Travers) published work "Mary Poppins Brings in the Dawn", in which Mary Poppins was Jesus's nanny. Mary Poppins appears in Alan Moore's third "League of Extraordinary Gentlemen" graphic novel, "", when it returns to Margaret Cavendish's "Blazing World". She later reappears in "Century: 2009", where she defeats the Antichrist created by Oliver Haddo. In this appearance, she and other characters hint that she may be a personification of God. In a sequence celebrating British children's literature during
Mary Poppins Returns script. On February 18, 2016, Emily Blunt was cast in the film to play the title role in the sequel. On February 24, 2016, Lin-Manuel Miranda was cast in the film to play Jack, a lamplighter. In April 2016, Disney confirmed that the film was in development and that Blunt and Miranda had been cast in the lead roles. In May, Disney announced the film's title as "Mary Poppins Returns". By July 2016, Meryl Streep had entered negotiations to join the cast to play cousin Topsy, and in the following month, Ben Whishaw in negotiations to play the grownup Michael