Composer Giacomo Puccini Librettists Luigi Illica and Giuseppe Giacosa Based On the drama La Tosca by Victorien Sardou Company San Francisco Opera Association Touring Location Los Angeles, CA Venue Shrine Auditorium Season 1956 Language Italian Creative/Crew Conductor Glauco Curiel Stage Director(s) Carlo Maestrini Chorus Director Gianni Lazzari Costumers Goldstein & Co. Cast Floria Tosca, a celebrated singer Renata Tebaldi Mario Cavaradossi, a painter Richard Martell Baron Scarpia, Chief of Police Anselmo Colzani Sacristan George Cehanovsky Cesare Angelotti, a political prisoner Carl Palangi Spoletta, a Police Agent Alessio De Paolis Sciarrone, a gendarme Heinz Blankenburg Jailer Colin Harvey Shepherd Katherine Hilgenberg Show Dates Wed, Oct 24 1956, 8pm Time and Place Rome, 1800 Scenes Act I -- Interior of the Church of St. Andrea Act II -- A Room in Scarpia's Apartments in the Farnese Palace Act III -- A Terrace of the Sant'Angelo Castle, outside the Prison Notes San Francisco Opera Boys Chorus