| Role | Voice Part | Classification |
|---|---|---|
| Pier Francesco Orsini (as adult) | Tenor | L |
| Silvio De Narni, Astrologer | Baritone | L |
| Diana Orsini | Contralto | F |
| Pantasilea | Mezzo Soprano | F |
| Julia Farnese | Soprano | F |
| Gian Corrado Orsini | Bass-Baritone | S |
| Nicolas Orsini | Tenor | S |
| Girolamo (as adult) | Bass-Baritone | S |
| Maerbale (as adult) | Baritone | S |
| Shepherd Boy (child) | S | |
| Messenger | Tenor | B |
| Pier Francesco Orsini (as child) | B | |
| Maerbale (as child) | B | |
| Girolamo (as child) | B | |
| Skeleton (Dancer) | ||
| Abul (Dancer) | ||
| Minimum Chorus: 36 | ||
| Divisi: SATB | ||
| Chorus Notes: 5 Chorus solo lines = CB (each) |
Schedule C