baritone vocals [don carlos di vargas] Giangiacomo Guelfi
bass vocals [fra melitone] Melchiorre Luise
bass vocals [il marchese di calatrava] Paolo Washington
bass vocals [padre guardiano] Giulio Neri
bass vocals [un alcade] Giorgio Giorgetti
chorus Coro Del Teatro Comunale Di Firenze
conductor Gabriele Santini
mezzo-soprano vocals [curra] Luciana Boni
mezzo-soprano vocals [preziosilla] Fedora Barbieri
orchestra Orchestra Del Teatro Comunale Di Firenze
soprano vocals [donna leonora] Renata Tebaldi
tenor vocals [don alvaro] Giuseppe di Stefano
tenor vocals [trabuco] Sergio Tedesco
tenor vocals [un chirurgo] Mario Frosini
Live recording Firenze 8.6.1956