To help her quickly shuck one character and assume another, she devised musical playlists and a style of dancing for each clone. She used to mostly flail around in private, but since then, the Toronto-based Ms. Maslany has been taking the party to the “Orphan Black” set and home. “I dance around and make a lot of noises,” she said, laughing. “My neighbors must love me.” - Tatiana Maslany, photographed Sam Comen, for The New York Times.