Casting: SWAT Dancers/Actors for Terror Behind The Walls at Eastern State Penitentiary. Location: Philadelphia, PA 19130 Type: Dance Casting: SWAT Dancers/Actors for Terror Behind The Walls at Eastern State Penitentiary. Terror Behind the Walls (TBTW), consistently ranked among the top haunted houses in the nation, runs select nights from September through November and employs a … Continue reading Dancer Auditions in Philadelphia for Terror Behind The Walls at Eastern State Penitentiary