| Role | Voice Part | Classification |
|---|---|---|
| George Milton | Baritone | L |
| Lennie Small | Tenor | L |
| Curley's Wife | Soprano | L |
| Curley | Tenor | F |
| Candy | Baritone | F |
| Slim | Baritone | F |
| Carlson | Tenor | S |
| Ballad Singer | Tenor | S |
| Haygood, Luke, Pete, Johnson | Tenor | CB |
| 1st, 2nd, 3rd Man | Tenor | CB |
| Minimum Chorus: 8 | ||
| Divisi: SATB |