- Author:
- Gabriele D'Annunzio
- Music:
- null Pizzetti
- Singers/Musicians:
- Chorus and Orchestra of Radiotelevisione Italiana, Milan
- Chorus-Master:
- Roberto Benaglio
- Conductor:
- Nino Sanzogno
- Fedra (Phaedra):
- Mercedes Fortunati
- Ippolito (Hippolytus):
- Aldo Bertocci
- Teseo (Theseus):
- Anselmo Colzani
- Etra, his mother:
- Vittoria Palombini
- The Charioteer Eurito:
- Silvio Majonica
- Gorgo, nurse to Fedra:
- Bruna Ronchini
- Ipponoe, a Theban slave:
- Silvana Brandolini
- The Phoenician Merchant:
- Nicola Zaccaria
- The Seven Suppliants and Servants:
- Maria Luisa Zeri
- The Seven Suppliants and Servants:
- Aida Hownanian
- The Seven Suppliants and Servants:
- Miriam Funari
- The Seven Suppliants and Servants:
- Lucia Quinto
- The Seven Suppliants and Servants:
- Giannella Borrelli
- The Seven Suppliants and Servants:
- Giuseppina Salvi
- The Seven Suppliants and Servants:
- Bianca Furlai
- Procles, a young boy:
- Giannella Borelli
