sentences:  Some claim that the name is spelled "Billie", though Wan himself spells it "Billy".The endurance and popularity of the "Saw" franchise has resulted in the production of Billy merchandise, as well as references in other media.Billy is a male ventriloquist's dummy, as his jaw is movable to give the suggestion that it is talking; however, it is not used in the same manner, as the entire doll is frequently seen moving on its own.