The Rocky Horror Picture Show verbatim at each screening. Performance groups became a staple at "Rocky Horror" screenings due in part to the prominent New York City fan cast. The New York City cast was originally run by former schoolteacher and stand-up comic Sal Piro and his friend Dori Hartley. Hartley who portrayed Dr. Frank N. Furter, was one of several performers, including Will Kohler as Brad Majors, Nora Poses as Janet, and Lilias Piro as Magenta in a flexible rotating cast. The performances of the audience was scripted and actively discouraged improvising, being conformist in a similar way to the repressed characters. On Halloween
The Rocky Horror Picture Show costume designer Sue Blane, musical director Richard Hartley, and stage producer Michael White, who was brought in to produce. As the musical went into rehearsal, the working title, "They Came from Denton High", was changed just before previews at the suggestion of Sharman to "The Rocky Horror Show". Having premiered in the small sixty-seat Royal Court Theatre, it quickly moved to larger venues in London, transferring to the 230-seat Chelsea Classic Cinema on Kings Road on 14 August 1973, before finding a quasi-permanent home at the 500-seat King's Road Theatre from 3 November 1973, running for six years. The musical