Mr. Binnacle is a character featured in the movie Mary Poppins and its sequel. He is portrayed by Don Barclay in Mary Poppins and Jim Norton in Mary Poppins Returns. It is revealed that he is a retired Navy man who lives next door to the Banks family. He and Admiral Boom had served in the English Navy at the time. When Bert was directing the audience to 17 Cherry Tree Lane, he was first spotted with Admiral Boom. Bert stops as he passes the residences to give Admiral Boom an introduction.