| Role | Voice Part | Classification |
|---|---|---|
| Bess | Soprano | L |
| Jan | Baritone | L |
| Mother | Soprano | F |
| Dodo | Mezzo Soprano | F |
| Dr. Richardson | Tenor | F |
| Church Councilman | Baritone | S |
| Terry | Bass-Baritone | S |
| Sadistic Sailor | Bass | B |
| Younger Sailor | Tenor | CB |
| Tenor Solo | Tenor | CB |
| Minimum Chorus: 12 | ||
| Divisi: TB |