- Lodovico Oliviero, Lorenzo Alvary, George Szell, Walter Olitzki, Anthony Marlowe, Irene Jessner, Jarmila Novotna, Nadine Conner, The Metropolitan Opera Orchestra, Edward Caton, Ludwig Burgstaller, Gerhard Pechner, Hertha Glaz, Maxine Stellman, Emanuel List, Mona Paulee, Alessio De Paolis, Lillian Raymondi, The Metropolitan Opera Chorus, Thelma Votipka, Thelma Altman, Emery Darcy, Thomas Hayward
- Leonard Warren, William Wilderman, George Cehanovsky, Louis Sgarro, The Metropolitan Opera Chorus, Gabor Carelli, Norman Scott, Fausto Cleva, Madelaine Chambers, The Metropolitan Opera Orchestra, Roberta Peters, Eugenio Fernandi, Thelma Votipka, Margaret Roggero, Mildred Allen, Calvin Marsh