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 1955 Language Italian Creative/Crew Conductor Glauco Curiel Stage Director(s) Carlo Piccinato Chorus Director Leo Mueller Costumers Goldstein & Co. Cast Floria Tosca, a celebrated singer Dorothy Kirsten Mario Cavaradossi, a painter Roberto Turrini Baron Scarpia, Chief of Police Robert Weede Cesare Angelotti, a political prisoner Desire Ligeti Sacristan George Cehanovsky Spoletta, a Police Agent Alessio De Paolis Sciarrone, a gendarme Carl Palangi Jailer Heinz Blankenburg Shepherd Margaret Roggero Show Dates Sat, Oct 22 1955, 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 Boys selected from the San Francisco Boys Chorus