Producent
Dirigent
Regisseur
Old Galileo
Young Galileo
Pope Urban VIII
Cardinal Barberini
1. Cardinal
2. Cardinal
Duchess Christina
Marie Celeste
Eos
Sagredo
Marie de' Medicis
Maria Maddalena
Scribe
1. Oracle
2. Oracle
Servant
Salviati
Priest
3. Cardinal
Father of Merope
Simplicio
Set designer
Kostuum ontwerper
Licht ontwerper