Act I
Nicola Moscona, Francesco Valentino, Anne McKnight, Jan Peerce, Licia Albanese, Arturo Toscanini, George Cehanovsky, Salvatore Baccaloni, NBC Chorus, NBC Symphony Orchestra
Act II
Nicola Moscona, NBC Chorus, Salvatore Baccaloni, Licia Albanese, Anne McKnight, NBC Symphony Orchestra, Jan Peerce, Arturo Toscanini, George Cehanovsky, Francesco Valentino
Act III
Anne McKnight, Salvatore Baccaloni, Francesco Valentino, Arturo Toscanini, George Cehanovsky, NBC Symphony Orchestra, NBC Chorus, Jan Peerce, Licia Albanese, Nicola Moscona
Act IV
NBC Chorus, Salvatore Baccaloni, NBC Symphony Orchestra, Licia Albanese, Arturo Toscanini, George Cehanovsky, Anne McKnight, Francesco Valentino, Nicola Moscona, Jan Peerce