Jack (Mary Poppins)

Jack is a minor protagonist in the film Mary Poppins Returns portrayed by Lin-Manuel Miranda as a British lamplighter and a former apprentice to Bert. The character of Jack is a sort of spiritual successor to Bert in "Mary Poppins Returns."

The "Hamilton" and "In the Heights" creator spoke to Slashfilm about the making of "Mary Poppins Returns" and expanded on Jack's role in the film.

"Jack is a lamp-lighter. He apprenticed under Burt from the original films so he knows all about Mary," said Miranda. "So it's really nice to play the Burt position in this film. You kind of get to go on all the fun adventures with the Banks family."