Massachusetts-bred former “Sex and the City” actor Mario Cantone was at the Huntington Theatre on Tuesday night to check out “The Jungle Book.” The show’s King Louie, Andre De Shields, is also a “Sex” alum. He played Charlotte’s tap dance teacher in the episode “Change of a Dress.”Mark Shanahan can be reached at firstname.lastname@example.org. Follow him on Twitter @MarkAShanahan. Meredith Goldstein can be reached at email@example.com. Follow her on Twitter @MeredithGoldste.