| Role | Voice Part | Classification |
|---|---|---|
| Lucrezia Contarini | Soprano | L |
| Jacopo Foscari | Tenor | L |
| Francesco Foscari, Doge | Baritone | L |
| Jacopo Loredano | Bass | F |
| Pisana | Soprano | S |
| Barbarigo | Tenor | S |
| Officer of the Council of Ten | Tenor | CB |
| Doge’s servant | Baritone | CB |
| Minimum Chorus: 32 | ||
| Divisi: SATB |