- Victorio Bacciato, Virgilio Tavini, Giulio Viamonte, Fernando Previtali, Mignon Dunn, Chorus of Teatro Colon, Richard Tucker, Ruzena Horakova, Norman Scott, Gré Brouwenstijn, Orchestra of the Teatro Cólon, Mario Verazzi, Aldo Protti, Guerrino Boschetti
